CN1894953A

CN1894953A - Image photographing apparatus

Info

Publication number: CN1894953A
Application number: CNA2004800379351A
Authority: CN
Inventors: 吴亨烈; 郑会源
Original assignee: Hysonic Co Ltd
Current assignee: Hysonic Co Ltd
Priority date: 2003-12-19
Filing date: 2004-12-20
Publication date: 2007-01-10
Anticipated expiration: 2024-12-20
Also published as: CN100448266C; KR20050062972A; KR100582746B1

Abstract

The present invention relates to an image photographing apparatus for always focusing an image photographed by an image is capture device automatically to improve the image quality. The present invention automatically focuses the image through a zoom actuator for changing a zoom ratio and a focus actuator for controlling the focus to thereby enhance the image quality. Also, the invention further adds a zooming function to diversify the application fields of an image photographing.

Description

Image picking-up apparatus

Technical field

The present invention relates to image picking-up apparatus, relate in particular to and have the image picking-up apparatus that is installed in the simple and little structure on the communication terminal.

Background technology

Fig. 1 is the block diagram of the structure of the traditional image picking-up apparatus of explanation.As making among Fig. 1, mobile phone 100 comprises: main frame 101; Be used to operate the button 102 of mobile phone; Be used to show the screen 103 of telephone number or image; And be used for the camera model 104 of photographic images.The internal structure of camera model 104 is shown in Figure 2.That is to say that camera model 104 comprises module housing 201, capturing element 203, second set of lenses 206 and the 3rd set of lenses 207.Fig. 3 makes the photographing optical system 300 that comprises the anti-tampering filter 202 of moir é (mole line, folded grid), first set of lenses 205, second set of lenses 206 and the 3rd set of lenses 207 separate so that the diagram of its function to be described with camera model 200.Photographing optical system 300 is taken the image of the object on the body surface 301 that is positioned on the plane of delineation 303.Therefore, capturing element 203 is positioned on the plane of delineation 303, thereby the object 302 on the body surface 301 forms the image 304 on the imaging surface 303.

As illustrate as shown in Fig. 4 of traditional structure, if object 401 leaves near the position body surface 301 and the camera, then the image of object 401 forms and leaves imaging surface 303.On the contrary, as shown in Figure 5,, and move along direction near photographing optical system 300 if object 501 leaves body surface 301 and away from the position of camera, then the image 501 of object leaves the plane of delineation.As mentioned above, if object leaves the body surface that is provided with by photographing optical system 300 at first, then the image of object also leaves the plane of delineation 303.Like this, the image defocus of shooting, and the degradation of the image of taking.

Summary of the invention

Therefore, the objective of the invention is to propose a kind of energy by focus on the image picking-up apparatus that the image that is formed by capturing element improves picture quality always.

Be used to realize that the image picking-up apparatus according to a first aspect of the invention of above-mentioned purpose comprises:

The offset lens group;

The focusing drive division that is used for fixing the offset lens group;

Focus actuator is used for the focusing drive division is transferred to optical axis, with the focus of control compensation set of lenses;

Be used to support the fixed part of focus actuator;

Capturing element is used to take the image through the object of offset lens group; And

Be used to control the control part of focus actuator and capturing element, wherein the focus drive division comprises: first lens barrel, described first lens barrel portion within it combine (combination) and form first external screw thread on its excircles with the offset lens group; Second lens barrel, described second lens barrel outside combines with focus actuator at it, and forms on the circumference within it and first internal thread of the first external screw thread threads engage; And well, described well is installed on first lens barrel so that insert and throw.

And described focus actuator comprises:

Drive coil, described drive coil so that be fixed, and are applied in electric current from control part around a side of the focus drive division or the first zoom drive portion; And

Magnet, described magnet is fixed to the opposite side of the focus drive division or the first zoom drive portion, thus the polarity of wherein said magnet is separated the flat of magnetic flux through drive coil.

Described focus actuator further comprises and is used to make the focus drive division to be returned to the returning spring of initial position.

Yoke (yoke) further is installed between magnet and the focus drive division, so that the circulation of the magnetic flux of magnet.

Simultaneously, described focus actuator comprises:

Drive division, described drive division are used to receive the power supply from control part, to produce the power that moves along the direction that is orthogonal to optical axis; And

Cam part, described cam part is used to receive the power of drive division, and to switch in the power of metastatic focus drive division on the optical axis direction, wherein said drive division comprises: by the power supply motor rotating of being supplied with by control part; Combine spur gear to be rotated with the central shaft of motor; And rotor, described rotor forms the gear teeth that combines (combination) with spur gear, and by receiving the power supply rotation of supplying with by control part.And it can comprise: by the power supply motor rotating of being supplied with by control part; Driving screw describedly combines with the rotating shaft of motor; And the screw rod retainer, described screw rod retainer combines with driving screw, so that move along the direction that is orthogonal to optical axis by the rotation of driving screw.

Simultaneously, cam part comprises being formed on is used to inclined-plane that the focus drive division is risen on the drive division that on optical axis direction wherein the focus drive division forms the projection that contacts with the inclined-plane.

And cam part further comprises suspension member, and described suspension member is supported between fixed part and the focus drive division, so that the focus drive division is removable on optical axis direction, and guiding focus drive division is driven on optical axis direction.

Suspension member can be leaf spring or deformed spring (wire spring), and comprises: strain portion, and described strain portion is out of shape on optical axis direction by making the narrowed width between fixed part and the focus drive division; A plurality of first holes; And first and second lug bosses, described first and second lug bosses insert in a plurality of first holes, are used for suspension member is fixed to the first zoom drive portion and focus drive division.

Simultaneously, the focus actuator that comprises suspension member comprises: the magnet that is fixed to fixed part or focus drive division; Drive coil, described drive coil is fixed to a side that does not have fixed magnets of fixed part or focus drive division, being exposed to the magnetic field of magnet, and when applying the electric current of control part, be wound, so that produce the power that is used on optical axis direction, driving the focus drive division by the magnetic flux that receives magnet; And magnetisable material, described magnetisable material is fixed to a side of fixed drive coil, and the power moving focal point drive division of utilization and magnet magnetic attraction, so that the focus drive division is fixed to the precalculated position.

Simultaneously, focus actuator comprises further and being used to be guided on the optical axis direction the guiding device of driven focus drive division that wherein the embodiment of guiding device comprises: the slide protrusion that is formed on a side of focus drive division on optical axis direction; And sliding tray, described sliding tray is formed on a side of the slide protrusion that does not form the focus drive division of drive division, is used to guide slide protrusion and moves on optical axis direction.

And, another embodiment of guiding device can comprise slidably be formed on the focus drive unit on the guidance axis that combines of guide hole, and can comprise further along optical axis direction being formed on three or more guidance parts on the fixed part that described guidance part is used for the outer peripheral face of guiding focus drive division on optical axis direction.

In addition, in order to eliminate the frictional force between guidance axis and the guide hole, guiding device comprises: the control signal generating unit, described control signal generating unit is used to produce low frequency Modulation and Amplitude Modulation control signal, so that in electric current being applied to the initial predetermined driving time of drive coil, prevent frictional force, and be used for behind initial predetermined driving time, producing high frequency Modulation and Amplitude Modulation control signal; And be used to export the pulse width modulating signal efferent of the low frequency Modulation and Amplitude Modulation control signal that the control signal generating unit produces and have according to high frequency Modulation and Amplitude Modulation control signal opening/closing with the low frequency portion of the drive coil that drives focus actuator and the pulse width modulating signal efferent of radio-frequency head.

Simultaneously, focus actuator comprises: the compensation drive division, and described compensation drive division is installed between offset lens group and the focus drive division, to drive the offset lens group; The compensation suspension member, described compensation suspension member is connected between compensation drive division and the focus drive division, so that the offset lens group is fixed to the focus drive division, becoming thus is movable in the direction of the optical axis that is orthogonal to the offset lens group; Compensation actuator, described compensation actuator are supported between compensation drive division and the focus drive division, to be orthogonal to driving compensation drive division on the direction of optical axis; Displacement transducer, described displacement transducer are installed on the side of focus drive division, are used for sensing because the focus drive division that user's hand shake causes is being orthogonal to moving on the direction of optical axis; And servo controller, described servo controller is used for the information-driven compensation actuator according to displacement transducer, thereby makes the focus drive division be returned to reset condition.

Here, the compensation suspension member is deformed spring (wire spring) or leaf spring, and compensation actuator comprises one in voice coil motor, piezoelectric element and the ultrasound electric machine.

Simultaneously, focus actuator further comprises the initial position fixed part that is used for by pre-customized power the focus drive division being fixed to default initial position, wherein said initial position fixed part comprises first magnetisable material, the side that the magnet that described first magnetisable material is fixed to the focus drive division is fixed, in the scope with the magnetic line of force of the side that is not exposed to the magnet that does not have the fixed-focus drive division (in the scope that the magnetic line of force of a side of the magnet that does not have the fixed-focus drive division arrives), and described first magnetisable material attracts magnet, so that the focus drive division is fixed to initial position.

In addition, focus actuator further comprises specific amplification position fixing part, described specific amplification position fixing part is used for the focus drive division is moved to ad-hoc location, thereby subject image with specific magnification ratio projection offset lens group, wherein said specific amplification position comprises second magnetisable material, described second magnetisable material be fixed to do not have the fixed-focus drive division a side not to be exposed in the magnetic line of force scope, and attraction magnet, so that the focus drive division is fixed to initial position, thereby the focus drive division is fixed to specific amplification position.

The technical problem of desire solution comprises according to a further aspect in the invention:

The offset lens group;

The focus actuator that is used for the focusing of control compensation set of lenses;

The focus drive division, described focus drive division shifts on the optical axis direction of offset lens group by focus actuator;

Be used to support the first zoom drive portion of focus actuator;

The displacement set of lenses;

The second zoom drive portion that is used for the bracing displacement set of lenses;

The zoom actuator, described zoom actuator is used to drive the first zoom drive portion with along the first motion track motion compensation set of lenses, and the second zoom drive portion that drives is with along the second motion track drive displacement set of lenses, wherein said first motion track is the zoom route of transition, and second motion track is the path of zoom route of transition; And

Control part, described control part is used to control focus actuator, zoom actuator and capturing element.

Here, the zoom actuator comprises: the actuating source; The first zoom drive parts, the described first zoom drive parts are used to drive the first zoom drive portion so that along the first motion track motion compensation set of lenses, wherein said first motion track is the zoom route of transition; The second zoom drive parts, the described second zoom drive parts are used to receive the power from the source of actuating, and drive the second zoom drive portion so that along the second motion track moving displacement set of lenses, wherein said second mobile route is the zoom route of transition; And return mechanism, be used to make the first zoom drive portion and the second zoom drive portion to be returned to initial condition.

The actuating source comprises: rotary driving part is used for producing revolving force by the control of control part; And rotor, be used to receive the power of rotary driving part to be rotated.And the actuating source can comprise: motor is used to receive power supply from control part to be rotated; Spur gear, described spur gear combines to be rotated with the central shaft of motor; And rotor, described rotor forms the gear teeth that combines with spur gear.The actuating source can comprise: motor is used to receive power supply from control part to be rotated; Driving screw, described driving screw combines with the rotating shaft of motor; And the screw rod retainer, described screw rod retainer combines with driving screw, so that be orthogonal on the direction of optical axis mobile by being rotated in of driving screw.

And the zoom actuator comprises: the actuating source; The first zoom actuator is used to receive the power from the source of actuating, and drives the first zoom actuation part so that along the first motion track motion compensation set of lenses, described first motion track is the zoom route of transition; And the second zoom actuator, be used to receive power, and drive the second zoom actuation part so that along the second motion track moving displacement set of lenses, the described second motion track zoom route of transition from the source of actuating.

The first zoom actuator comprises:

First stator is used to receive the power supply from control part, and has first coil, and described first coil is used to produce the magnetic field with first and second polarity, and described first and second polarity are divided into a plurality of parts and replace;

The first rotor, described the first rotor has first magnet, and described first magnet has separately first and second polarity being exposed to each magnetic field that separates that is produced by first coil, and carries out spinning movement when electric current is imposed on first coil;

First lens barrel is used for fixing the offset lens group;

First cam part is used for revolving force with the first rotor and is transformed into the centripetal force on the optical axis direction and sends it to first lens barrel.

Here, first stator comprises:

First magnetisable material, described first magnetisable material has a plurality of first core bodys, and described a plurality of first core bodys are corresponding with the first identical polarity of separating from first magnet respectively;

Second magnetisable material, described second magnetisable material has a plurality of second core bodys, and described a plurality of second core bodys are corresponding with the second identical polarity of separating from first magnet respectively and insert respectively in first core body; And

First coil, described first coil twines around the excircle of first core body and second core body, and second core body is combined between each first core body simultaneously.

The first rotor comprises:

First magnet; And

First rotating cylinder is describedly fixed by first magnet, and forms the first track groove consistent with first motion track, and wherein said first motion track is the zoom route of transition.

First cam part comprises:

First camshaft, described first camshaft is fixed to first lens barrel, and inserts in the first track groove; And

First guiding tube, thus described first guiding tube is formed for guiding first camshaft only moves it on optical axis direction first slot.

The second zoom actuator comprises:

Second stator is used to receive the power supply from control part, and has second coil, and described second coil is used to produce magnetic field, and described magnetic field has first and second polarity that are divided into a plurality of parts and replace respectively;

Second rotor, described second rotor have first and second polarity wherein and are separated so that be exposed to from second magnet in each magnetic field that separates that second coil produces, and carry out spinning movement when electric current is imposed on second coil;

Second lens barrel is used for fixing the offset lens group;

Second cam part is used for revolving force with the first rotor and is transformed into the centripetal force on the optical axis direction and sends it to second lens barrel.

Second stator comprises:

The 3rd magnetisable material, described the 3rd magnetisable material has a plurality of the 3rd core bodys, and described a plurality of the 3rd core bodys correspond respectively to the first identical polarity of separating from second magnet;

The 4th magnetisable material, described the 4th magnetisable material has a plurality of four-core bodies, and described a plurality of four-core bodies correspond respectively to the second identical polarity of separating from second magnet and insert respectively in the 3rd core body; And

Second coil, described second coil twines around the excircle of the 3rd core body and four-core body, and the four-core body is combined between each the 3rd core body simultaneously.

And second rotor comprises:

Second magnet; And

Second rotating cylinder, described second rotating cylinder is fixed by second magnet, and forms the second track groove consistent with second motion track, and wherein said second motion track is the zoom route of transition.

Second cam part comprises:

Second camshaft, described second camshaft is fixed to second lens barrel, and inserts in the first track groove; And

Second guiding tube, thus described second guiding tube is formed for guiding second camshaft only moves it on optical axis direction second slot.

According to a preferred embodiment of the invention, the zoom actuator by use changing zoom ratio and the focus actuator of control focus auto focus image always can improve picture quality, and can make the range of application of image taking wider by adding zoom function.

Description of drawings

Fig. 1 is the block diagram with portable terminal of common image picking-up apparatus.

Fig. 2 is the block diagram of the image picking-up apparatus among Fig. 1.

Fig. 3 is the view relevant with Fig. 2, shows the object on the object plane that is in the complete focus.

Fig. 4 is the view relevant with Fig. 2, illustrates from moving to the object of camera near the camera.

Fig. 5 is the view relevant with Fig. 2, is illustrated in the object that moves away from the direction of camera.

Fig. 6 is the view that illustrates according to the structure of the image picking-up apparatus of the first embodiment of the present invention.

Fig. 7 is the 3-D view of the focus drive division of Fig. 6.

Fig. 8 is that explanation utilizes the electromagnetic force of the focus actuator shown in Fig. 6 to produce the view of the principle of actuating force.

Fig. 9 is the block diagram of coil, permanent magnet and the yoke assembly of the principle of the generation electromagnetic actuation force shown in the application drawing 6.

Figure 10 is the block diagram that is in the focus drive division shown in Fig. 6 of initial position and is in the object on the object plane in the complete focus.

Figure 11 and 12 is views of the optical manipulation of the focus drive division shown in the key diagram 6.

Thereby Figure 13 illustrates iron-core workpiece to be installed in focus drive division in the focus actuator shown in Fig. 6 receives the structure of the power on the specific direction by the cooperation of permanent magnet and yoke view.

Figure 14 is the sectional view of structure that the embodiment of the guiding device in the focus drive division that is installed among Fig. 6 is shown.

Figure 15 is the perspective view that another embodiment of the guiding device in the focus drive division that is installed in Fig. 6 is shown.

Figure 16 is the view relevant with Figure 15, the Frotteurism when being illustrated in suspention focus drive division between guidance axis and the guide channel.

Figure 17 is the view relevant with Figure 15, the Frotteurism when being illustrated in the moving focal point drive division between guidance axis and the guide channel.

Figure 18 illustrates the acceleration of the actuating force object by the focus drive division relevant with Figure 16 and the view of the correlation between the actuating force.

Figure 19 is the waveform chart that utilizes the pwm pulses of the control part supply among Fig. 6.

Figure 20 is the circuit diagram that is shown specifically the structure of Fig. 6.

Figure 21 illustrates the view of focus drive division according to the displacement of the coil that is applied in voltage when supplying with the control part among Fig. 6.

Figure 22 is vertical view that the structure of the suspension member in the focus actuator that is installed in Fig. 6 is shown.

Figure 23 is the plane graph that the suspension member among Figure 22 is shown.

Figure 24 is vertical view that the structure of the focus actuator that the suspension member among Figure 23 is installed is shown.

Figure 25 is vertical view that the mode of operation of the suspension member among Figure 22 is shown.

Figure 26 is vertical view that the structure of the compensation actuator relevant with Fig. 6 is shown.

Figure 27 is vertical view that the mode of operation of Figure 26 is shown.

Figure 28 illustrates the view that initial position fixed part and specific amplification position fixing part are installed in the state in the focus actuator among Fig. 6.

Figure 29 and 30 is views relevant with Figure 28, and the mode of operation of initial position fixed part and specific amplification position fixing part is described.

Figure 31 illustrates vertical view that zoom drive portion and zoom actuator are installed in the state in according to a second embodiment of the present invention the image picking-up apparatus.

Figure 32 is the view that the structure of the zoom actuator among Figure 31 is shown.

Figure 33 illustrates when the zoom drive portion shown in Figure 31 to be in the view that forms image when initial position and object are on the object plane in the complete focus on capturing element.

Figure 34 and 35 is views of the optical manipulation of the zoom drive portion shown in explanation Figure 31.

Figure 36 illustrates vertical view that brake apparatus is installed in the state on the zoom actuator shown in Figure 31.

Figure 37 is the 3-D view of the brake apparatus among Figure 36.

Figure 38 is the fixing view of the structure of zoom drive portion when electric current being shown not being applied to brake apparatus shown in Figure 36.

Thereby Figure 39 is the view that the state that when electric current is applied to brake apparatus shown in Figure 36 actuation part and zoom drive part move freely from zoom drive portion is shown.

Figure 40 is vertical view of structure that the image picking-up apparatus of a third embodiment in accordance with the invention is shown.

Figure 41 is vertical view of structure that the embodiment of focus drive division shown in Figure 40 and focus actuator is shown.

Figure 42 is the sectional view that the structure of focus drive division shown in Figure 40 and focus actuator is shown.

Figure 43 is vertical view of structure that another embodiment of focus drive division shown in Figure 40 and focus actuator is shown.

Figure 44 is vertical view of structure that first embodiment of the focus actuator among Figure 43 is shown.

Figure 45 is vertical view that second embodiment of the focus actuator among Figure 43 is shown.

Figure 46 is vertical view of structure that the 3rd embodiment of the focus actuator among Figure 43 is shown.

Figure 47 is vertical view that another embodiment of focus drive division among Figure 43 and focus actuator is shown.

Figure 48 is the view that the structure of the zoom actuator shown in Figure 43 is shown.

Figure 49 is the view that motion track is shown, and described motion track is that the path is changed on the zoom limit of displacement set of lenses that is used for the zoom actuator of Figure 48.

Figure 50 is the view that first embodiment of the zoom actuator shown in Figure 48 is shown.

Figure 51 illustrates the first rotor of the first zoom drive portion shown in Figure 50 and the second zoom drive portion and the perspective view of second rotor.

Figure 52 is the perspective view that first stator of first stator of the first zoom drive cage structure among Figure 50 and the second zoom drive portion is shown.

Figure 53 is the view that the disassembled form of the zoom actuator shown in Figure 50 is shown.

Figure 54 is the perspective view that the first zoom drive portion, first guiding tube and second guiding tube among Figure 50 are shown.

Figure 55 illustrates first lens barrel of the first zoom drive portion and the second zoom drive portion and the perspective view of second lens barrel.

Figure 56 is the view that another embodiment of first cam part in the zoom actuator shown in Figure 48 is shown.

Figure 57 is the perspective view of the cam canister shown in Figure 56.

Figure 58 is the view of another embodiment that the drive source of the zoom actuator shown in Figure 43 is shown.

Figure 59 is the view of another embodiment that the drive source of the zoom actuator shown in Figure 43 is shown

Figure 60 is vertical view that the state in the displacement set of lenses that compensation actuator is installed in Figure 43 is shown.

Figure 61 is the view of structure that the image picking-up apparatus of a third embodiment in accordance with the invention is shown.

Figure 62 is vertical view that shutter device is installed in the state on the image picking-up apparatus shown in Figure 43.

Figure 63 is a schematic plan view.

Figure 64 and 65 is views that the user mode of the shutter device shown in Figure 62 is shown.

Embodiment

Below, will be referring to description of drawings the preferred embodiments of the present invention.

First embodiment

Fig. 6-the 9th illustrates the view according to the structure of the image picking-up apparatus of the first embodiment of the present invention.Here, the image picking-up apparatus 600 according to the first embodiment of the present invention comprises:

Fixed lens group 605,606, described fixed lens group 605,606 has outer lens barrel 601, capturing element 602, capturing element matrix 603, antiultraviolet filter 604 and lens;

Offset lens group 607 with one or more lens;

The focus drive division 608 of offset lens group 607 is installed; And

The guidance axis 609 of the transfer of guiding focus drive division 608.

In addition, the focus actuator 611 that is used for moving focal point drive division 608 on optical axis direction be installed in focus drive division 608 and outside between the lens barrel 601.Focus actuator 611 further comprises: the drive coil 703 that is used for producing by the streaming current of focus drive division 608 outsides actuating force; Permanent magnet 702; And the yoke 701 of the efficient in the magnetic field of increase permanent magnet 701 generations.

Fig. 7 is the view that is shown specifically the structure of the focus drive division 608 shown in Fig. 6.Here, the guidance axis 609 of symmetric arrangement pierces into the left side and the right side of drive division 608, and drive coil 703 is installed on the upper surface and lower surface of drive division 608 symmetrically.

The operation of the focus actuator 611 that comprises drive coil 703, magnet 702 will be described referring to Fig. 8 and 9.Permanent magnet 702 has along its thickness direction polarized the N utmost point and the S utmost point, and permanent magnet 702 is installed in the inside of yoke 701 1 sides.The magnetic line of force 801 from permanent magnet rotates to return magnet 702 along yoke 701, does not have the magnetic line of force to be dropped into the sealing magnetic flux of outside thereby have.The lead 802 that electric current flows is installed in the permanent flux 702.If electric current flows to the other end from lead 802 1 ends, then by the cooperating of the electric current that flows in lead 802 and the magnetic line of force 801, it is power on first direction 803 and the second direction 804 that lead 802 is received in direction perpendicular to the magnetic line of force 801 and lead 802.For example, if electric current flows to end TB from end TA, then lead is received in the thrust on the first direction 803, and if electric current flow in the opposite direction, then lead is received in the power on the second direction 804.By above-mentioned operation principle, be controlled at the size and Orientation of the electric current that flows in the lead, thereby control is applied to the size and Orientation of the power of lead 802.

Fig. 9 is the view that the state in magnet 702 and the yoke 701 that is installed in the drive coil 703 of the generation of the actuating force shown in increase Fig. 8 by the lead winding is shown.Utilize this structure, the actuating force that produces in drive coil 703 is proportional with the number of times that twines drive coil 703, and the size and Orientation of the electric current that flows between end TA by being controlled at drive coil 703 and the TB, control is applied to the size and Orientation of the power of drive coil 703.

To operation of the present invention that use electromagnetic force principle be described referring to Fig. 6.As shown in Figure 6, according to the electric current of the drive coil 703 that is applied to the focus actuator 611 that is installed in the focus drive division 608, drive coil 703 receives power on top or the bottom direction according to the sense of current, and described power is sent to focus drive division 608.The action of the first zoom drive portion 608 is by the restriction of the guidance axis among Fig. 7, and focus drive division 608 moves to top or bottom direction along guidance axis.The moving direction of focus drive division depends on the flow direction of electric current.

Figure 10-the 12nd illustrates the view according to the optical effect that moves of focus drive division 608.As shown in Figure 10, the offset lens group 607 that is installed on the focus drive division 608 moves to left or the right according to the sense of current that is applied to drive coil 703.That is, as shown in Figure 10, if offset lens group 607 is on the initial position, the image 1104 that then is positioned at the object 1103 on the predetermined object plane 1101 is formed on unique plane of delineation of being determined by optical system 300 1102.Here, optical system 300 comprises object plane 1101, fixed lens group 605,606, offset lens group and antiultraviolet filter 604.Like this, capturing element 602 is positioned on the plane of delineation 1102.

If Figure 11 explanation object becomes from the optical manipulation of object plane 1101 contiguous capture lens groups.If object 1103 becomes from object plane 1101 close optical systems 300, then the image of object 1101 forms, and utilizes the principle of Fig. 4 to leave the plane of delineation 1102 simultaneously.Yet with motion compensation set of lenses 607, image 1104 is positioned on the plane of delineation 1102 once more by metastatic focus drive division 608.

If the operation that Figure 12 explanation object 1103 moves from object plane 1101 on away from the direction of optical system 300.In this case, if image moves to the direction of adjacent optical system 1100 from the plane of delineation 1102, then offset lens group 607 shifts by focus drive division 608, thereby image 1104 can be positioned on the plane of delineation 1101 once more.That is, object 1103 leaves object plane 1101, and by because the transfer of the offset lens group 607 that the transfer of focus drive division 608 causes, image is positioned on the plane of delineation 1102 always.By aforesaid operations, no matter object space how, all can be in the image in the complete focus in the capturing element photographs on being positioned at the plane of delineation 1102.

Figure 13 is the view of installment state that the iron plate 631 of first embodiment shown in Fig. 6 of the present invention is shown.The power that drive coil 703 produces on the specific direction, and iron plate 631 will be applied to focus drive division 608 with the power that certain party goes up in the opposite direction.As the example that this embodiment is applied to the structure of first view of the present invention, in the cross section on the predetermined direction that D-D along the line obtains, image picking-up apparatus 600 comprises drive division 608, capturing element 602, capturing element matrix 603, antiultraviolet filter 604, fixed lens group 605,606, offset lens group 607 and the drive division 608 that outer lens barrel 601 is installed.And, image picking-up apparatus further comprise have yoke 701, permanent magnet 702, drive coil 703 and be installed in the focus actuator 611 of the iron plate 631 in the predetermined portions of drive coil.

As shown in Fig. 6 and 13, have with the present invention's first view in the operation of image picking-up apparatus 600 of structure same structure be identical.Therefore, will omit detailed description.

At this moment, the iron plate 631 that is connected to the precalculated position of drive coil 703 is installed between magnet 702 and the yoke 701, and iron plate 631 receives the power by the magnetic line of force generation of magnet 702 and yoke 701.Like this, the power that the magnetic line of force of yoke 701 produces plays operation on the center position of the magnet with the strongest magnetic force, and described power is drawn onto iron plate 631 center position of magnet 702.Therefore, focus drive division 608 receives the power of the center position of magnet.Therefore, as shown in FIG., if electric current is not applied to drive coil 703, then focus drive division 608 moves on the shooting direction.Power on the opposite direction of the power that produces with iron plate 631 is provided for drive coil, and the power difference of the power of focus drive division 631 by the power that produces corresponding to iron plate 631 and drive coil 703 generations moves.Therefore, supply with the flow direction of the electric current of drive coil 703 and fix, and the big or small Be Controlled of electric current, thereby the position Be Controlled of focus drive division 608.

Figure 14 is the view of embodiment that the guiding device of the focus drive division shown in Fig. 6 is shown.Here, guiding device 1400 is formed on the focus drive division 608 along optical axis direction, and comprises three or more guide projections 1402 of the outer peripheral face that is used for guide cylinder 1401, and described lens barrel 1401 is fixed on offset lens group 607 on the optical axis direction.

And, another embodiment of guiding device 1500 comprise as shown in Figure 15 be formed on lens barrel 1401 on the guidance axis 1503 that combines slidably of guide hole 1501.That is, require the guidance axis 1503 of straight guide cylinder 1401.

Simultaneously, between the coupling part of guidance axis 1503 and lens barrel 1401, be to have frictional force between the guide hole 1501.

Figure 16 is the view that illustrates by the static friction that can be applicable to the object that actuating force of the present invention causes, and Figure 17 is the view that illustrates by the dynamic friction that can be applicable to the object that actuating force of the present invention causes.And Figure 18 illustrates the acceleration by can be applicable to the object that actuating force of the present invention causes and the view of the correlation between the actuating force.

As shown in Figure 16 and 17, there are two kinds of formation that frictional force is stiction and kinetic force of friction.Be suspended and the stiction that then begins mobile time operation works when lens barrel moves at lens barrel 1401, and bigger than kinetic force of friction.Therefore, if lens barrel 1401 begins to move, then lens barrel 1401 only moves when applied force is bigger than stiction.

Referring to Figure 18, increase gradually if impose on the actuating force of object, then object just moves when driving force ratio stiction Fs is big.Exceed moment of stiction Fs, object fast moving in actuating force.That is, stiction is littler than kinetic force of friction, thereby movement of objects stop the friction of moving to reduce fast, thereby the acceleration of object increases fast.Because physical cause, object do not move under less than the actuating force of particular range, if but actuating force surpasses particular range, and then the acceleration that the object utilization is big is moved.Therefore, be difficult to control the quite little displacement of movement of objects.

Figure 19 is the view that the control part 2000 of the electric current of controlling the drive coil of supplying with the image picking-up apparatus shown in Fig. 6 is shown.

That is, because guidance axis 1503 shown in Figure 15 and the accurate locational problem that causes of the friction between the guide hole 1501, as shown in Figure 19, control part uses the PWM waveform that comprises low frequency amplitude modulation waveforms and high frequency amplitude modulation waveforms in order to solve control.When the driving of control part begins, produce the pwm signal of low frequency amplitude modulation waveforms in the given time.At the fixed time, the pwm signal that output has the frequency identical with last frequency.In other words, use PWM frequency, and use the time of low frequency PWM to be used to solve static frequency with a plurality of frequencies.The PWM of each frequency has identical duty ratio.That is t1/t2=t3/t4.

That is, Figure 20 is the circuit diagram that the structure of the control part that produces the PWM waveform that comprises low frequency amplitude modulation waveforms and high frequency amplitude modulation waveforms shown in Figure 19 is shown.

Here, control part 2000 comprises control signal generating unit 2010 and pulse width modulating signal efferent 2020.

When drive control signal generating unit 2010 beginning, it produces in the given time and is used to prevent the low frequency Modulation and Amplitude Modulation control signal that rubs, at the fixed time after, control signal generating unit 2010 produces high frequency Modulation and Amplitude Modulation control signals.According to this embodiment of the invention, low frequency Modulation and Amplitude Modulation control signal preferably has identical duty ratio with high frequency Modulation and Amplitude Modulation control signal.

Low frequency Modulation and Amplitude Modulation control signal and high frequency Modulation and Amplitude Modulation control signal opening/closing that pulse width modulating signal efferent 2020 produces according to control signal generating unit 2010, thus output has the pulse width modulating signal of low frequency portion and radio-frequency head.

Control signal generating unit 2010 comprises digital signal processing device, microcomputer and FPGA.

For the low frequency portion of pulse width modulating signal, the preferred frequency of using near the bandwidth in the dynamic characteristic of drive division, but described frequency is the frequency of the accurate reaction of each pulse execution of the second lens barrel pulse-width modulated pulse.

Pulse width modulating signal efferent 2020 comprises transistor 2021, resistance 2022 and diode 2023.

Transistor 2021 comprises the emitter that is connected to ground, be used to receive the base stage of low frequency Modulation and Amplitude Modulation control signal that control signal generating unit 2010 produces and high frequency Modulation and Amplitude Modulation control signal and be connected to the collector electrode of driving element.Resistance 2022 is connected between transistor 2010 and the base stage.Diode 2023 is connected between the collector electrode and power Vcc of transistor 2021.

Below, will illustrate that the focus drive division utilizes the operation of each PWM frequency referring to Figure 21.Figure 21 illustrates the view that applies the lens barrel displacement of voltage according to the coil of the embodiment of the invention.

The low frequency portion of two signal waveforms uses lens barrel 1041 wherein can carry out frequency to the accurate reaction of each pulse of pwm pulse, that is, and and the frequency of contiguous bandwidth in the behavioral characteristics of focus drive division 608.Therefore, although lens barrel 1401 can not be followed in the driving pulse each fully, drive the state that profile becomes the pulse of precisely following application generally.That is, drive profile and be in accurate vibrational state.By accurate vibration, solved the static friction between focus drive division 608 and the guide hole 1501.In other words, the focus drive division is in the dynamic friction state, thereby disappears in the transformation from the static friction to the dynamic friction that the incipient stage that drives produces.And, solved the quick startup that causes owing to quick minimizing in the frictional force that drives the incipient stage generation.

Level and smooth when mobile when finishing by low frequency PWM, use the high-frequency PWM signal, cause on the position of displacement stably to be suspended in by using the high-frequency PWM signal.

Figure 22 is vertical view that the structure of the focus actuator that suspension member is installed is shown, described focus actuator is used on optical axis direction driving the focus drive division 608 shown in Fig. 6, and Figure 23 is the view that illustrates as the leaf spring 2200 of the example of the suspension member among Figure 22.Figure 24 is the view that the sectional view of the state that suspension member is installed is shown, and Figure 25 is the view that illustrates according to the mode of operation of the driving leaf spring 2200 of the focus actuator shown in Figure 23.

As shown in Figure 22, suspension member 2200 is supported between outer lens barrel 601 and the focus drive division 608, thereby focus drive division 608 is in the state that can move along optical axis direction, and restriction focus drive division 608, the difficulty thereby the driving on the direction outside the driving direction becomes, thus restriction focus drive division 608 is accurately driven along the direction of optical axis.

That is, suspension member generally includes leaf spring and deformed spring (wire spring), but embodiments of the invention comprise leaf spring 2200.

The shape that leaf spring 2200 has the narrowed width between the part that makes the part that is fixed to outer lens barrel 601 and be fixed to focus drive division 608 and can be out of shape towards optical axis direction easily.Like this, leaf spring 2200 elastic bearings will be moved to the first zoom drive portion 608 in the optical axis direction.

And as shown in Figure 23 and 24, leaf spring 2200 is fixed to four or more a plurality of position of focus drive division, thereby moves being orthogonal on the direction of optical axis to prevent focus drive division 608 as guide member.

Promptly, be formed on the leaf spring 2200 easilier, and insert first hole 2211 so that fixedly first lug boss 2213 and second lug boss 2214 of leaf spring 2200 are respectively formed on focus drive division 608 and the outer lens barrel 601 in the strain portion 2210 that is out of shape on the optical axis direction and a plurality of first hole 2211.

First lug boss 2213 and second lug boss 2214 are made of plastics.They then are fixed to leaf spring 2200 by ultrasonic fusing or hot melt through first hole 2211.

Here, as shown in Figure 22, focus actuator 611 comprises: the magnet 702 that is fixed to outer lens barrel 601 or focus drive division 608; Drive coil 703, this drive coil 703 is fixed to not to be had of fixed magnets 702 to go up with the magnetic field that is exposed to magnet 702 and is wound receiving the magnetic flux of magnet 702 when applying electric current in outer lens barrel 601 and the focus drive division 608, thereby produces the power that is used for driving focus drive division 608 on optical axis direction; Magnetisable material 2250, this magnetisable material 2250 is fixed on of fixed drive coil 701 in outer lens barrel 601 and the focus drive division, with produce with by the opposite attraction focus drive division 608 of the direction of the power of the drive coil of the magnetic force generation of magnet 702 and the power of drive coil 703, and when power supply is not applied to drive coil, the focus drive division is navigated to initial position.From control part 200 power supplies the time, drive coil 701 is received the magnetic force of magnet 702, producing electromagnetic force according to Fleming (Fu Laiming) lefft-hand rule, thereby drives the focus drive division on optical axis direction.

Yoke 701 further is connected to the back side of magnet 702, so that magnetic flux effectively circulates.

Simultaneously, magnetisable material 2250 produces attraction to magnet 702 with respect to the part with the strongest magnetic force in the magnet 702, and described power promptly goes up with the side of drive coil 701 on the direction of initial position in the opposite direction, attracts focus drive division 608.Therefore, be not applied in the initial condition of drive coil 701 at electric current, the first zoom drive portion 608 remains on its position that is in minimum surface.Magnetisable material 2250 provides the restoring force that makes focus drive division 608 be returned to initial position once more, drives focus drive division 608 simultaneously on optical axis direction.Therefore, magnetisable material 2250 is in order to guaranteeing the initial position when electric current is not applied to drive coil, and in order to when driving, to produce spring force.

Below, explanation is had the operation of the embodiments of the invention of above-mentioned structure.

The user utilizes the keyboard that is installed on the communication equipment to promote shooting push button, and control part 2000 drives unshowned capturing element, and capturing element is taken the object through offset lens group 607.The photographed image signal of capturing element is transmitted to control part.

If that takes is not fogging clear, receive that then the power supply that the control part of image will be used to focus is applied to drive coil 701.

If power supply is applied to drive coil 701, then the electromagnetic force according to the Fleming lefft-hand rule is produced by the magnetic flux from magnet 702, and drive coil 702 moves to optical axis direction.Therefore, adjusted the focusing of offset lens group 607, thereby the image of taking becomes more clear.

During this process, as shown in Figure 25, leaf spring 2200 guidings make focus drive division 608 accurately be driven on optical axis direction, and magnetisable material 2250 are as spring.Like this, leaf spring 2200 is minimized as the function of spring, but leaf spring 2200 is as the rectilinear motion of guide member with restriction focus drive division.

Magnetisable material 2250 utilizes on the direction opposite with the power of coil generation and attracts the gravitational attraction focus drive division 608 of magnet 702, thereby the restoring force that can make focus drive division 608 be returned to initial position is provided.

Figure 26 illustrates the view that is used to prevent in the installment state that is orthogonal to the compensation actuator that the shake owing to hand of the image that produces on the direction of optical axis defocuses, and Figure 27 is the view that the mode of operation of Figure 26 is shown.

Here, the image picking-up apparatus shown in Fig. 6 further comprises: the compensation drive division 2615 that is used to support offset lens group 607; Compensation suspension member 2611 is used for fixing compensation drive division 2615, is orthogonal on the direction of optical axis to move to offset lens group 607; Compensation actuator 2613, described compensation actuator 2613 is supported by focus drive division 608, to be orthogonal to driving compensation drive division 2615 on the direction of optical axis; Displacement transducer 2617, described displacement transducer 2617 are used for sensing compensation drive division and are being orthogonal to moving on the direction of optical axis; And servo controller 2619, described servo controller 2619 is used to receive the information of displacement transducer 2617, and drives compensation actuator 2613, so that compensation drive division 2615 is returned to initial condition.

Compensation suspension member 2611 is made by deformed spring (wire spring) or leaf spring.

Compensation actuator 2613 is being orthogonal to driving compensation drive division 2615 on the X-Y plane of optical axis direction.

Compensation actuator 2613 can comprise voice coil motor, piezoelectric element or supersonic motor.

Below, will be referring to Figure 27 explanation to compensation drive division 2615, the compensation actuator 2613 of shaking the image focusing that causes owing to hand, the operation that compensates suspension member 2613, displacement transducer 2617 and servo controller 2619.

During shot object, if the user holds the hand shake of capture apparatus, then image picking-up apparatus is shaken with respect to object.According to capture apparatus, the image of object becomes and is in the state that trembles with respect to capture apparatus.Simultaneously, be installed in the moving of displacement transducer 2617 sensing capture apparatus in the precalculated position in the capture apparatus, and send it to servo controller 2619.

If the capture apparatus vibration, then servo controller 2619 is operated compensation actuator 2613 on the direction of the vibration of the subject image of eliminating capture apparatus, thereby, eliminate because the vibration of the subject image that the hand shake causes.Like this, can take best subject image.

Figure 28 is the view that the erection stage of initial position fixed part on the focus actuator shown in Fig. 6 and specific focal point position fixing part is shown.Figure 29 and 30 is views that the mode of operation of initial position fixed part shown in Figure 28 and specific focal point position fixing part is shown.

In Figure 28, focus actuator 611 further comprises the initial position fixed part 2811 that is used for by pre-customized power focus drive division 608 being fixed to initial position, and initial position fixed part 2811 comprises first magnetisable material, described first magnetisable material is fixed so that in a side that does not have fixed magnets 702 is not exposed to the scope of the magnetic line of force of magnet 702, and is used for by attracting magnet 702 that focus drive division 608 is fixed to initial position.

And, focus actuator 611 further comprises feature position fixing part 2812, feature position fixing part 2812 is used for focus drive division 608 is moved to ad-hoc location, thereby the subject image of offset lens group 607 is in the complete focus with specific feature distance, its bust shot position fixing part 2812 comprises second magnetisable material, described second magnetisable material is fixed as is not having fixed magnets 702 1 sides not to be exposed in magnet 702 magnetic line of force scopes, and by attracting magnet 702 that focus drive division 608 is fixed to specific amplification position.

That is, initial position fixed part 2811 comprises first magnetisable material, and described first magnetisable material is fixed to outer lens barrel 601, so that be not exposed in the scope of the magnetic line of force of magnet 702, and by attracting magnet 702 fixed lens barrel 1401.

And, the feature position fixing part 2812 that is used for lens barrel 1401 is moved to ad-hoc location is installed, thereby offset lens group 607 is utilized specific enlarging projection subject image.Described specific amplification is set to carries out the position that feature is taken.

Feature position fixing part 2812 comprises second magnetisable material, and described second magnetisable material is fixed to outer lens barrel 601, so that be not exposed to the scope of the magnetic line of force of magnet 702, and by attracting magnet 702 that offset lens group 607 is moved to specific amplification position.

Simultaneously, the lower end of lens barrel 1401 forms first retainer 2813 that level touches outer lens barrel 601, and upper end formation level touches second retainer 2814 of outer lens barrel 601, thereby keeps the optical arrangement of offset lens group 607 outside lens barrel 1401 touches during the upper end of lens barrel 601.

The keyboard of communication equipment comprises the shooting push button (not shown) and is used for by driving the feature shooting push button (not shown) of capturing element photographic images.If promote common shooting push button, then control part 2000 drives the image of capturing element shot object, and simultaneously electric current is applied to drive coil, is used to proofread and correct the pattern of focusing error with execution.

If promote the feature shooting push button, then control part 2000 is applied to drive coil 703 with big electric current, lens barrel 401 is moved to initial position fixed part 2,811 one sides.

That is, do not having electric current to be applied under the state of drive coil 703, as shown in Figure 29, first magnetisable material 2811 attracts magnet 702 so that lens barrel 1401 is positioned at outer lens barrel 601 bottom.Therefore, first retainer 2813 touches the bottom of lens barrel 1401.

If the user utilizes the keyboard be installed on the communication equipment to promote common shooting push button, then control part 2000 will be used for mobile lens barrel 1401 and be applied to drive coil 703 to the electric current of common camera site.

If power supply is applied to drive coil 703, the effect that the magnetic flux that then utilizes the electric current of the drive coil 703 of flowing through produced by magnet 702 influences produces the electromagnetic force of magnet 702 and lens barrel 1401.Control part 2000 is adjusted sense of current and voltage, to rise and lens barrel 1401 is moved to common camera site.

And control part 2000 drives capturing element, to take the image of the object of being taken by capturing element by offset lens group 607.Capturing element becomes the signal of telecommunication with the image transitions of taking, to send the control part 2000 in the main frame to by flexible PCV.

If the object of taking is unintelligible, the control part 2000 of then receiving image will be adjusted electric current accurately and be applied to power supply, so that drive coil 703 is focused.Control part 2000 is adjusted the accurate direction and the voltage of electric currents, makes lens barrel 1401 rise or descend, thereby makes the image in the image pickup section photographs become more clear.

Simultaneously, if the user utilizes the keyboard be installed on the communication equipment to promote the feature shooting push button, then control part 2000 will be used for mobile lens barrel 1401 and be applied to drive coil 703 to the electric current of feature camera site.

If power supply is applied to drive coil 703, then utilize the effect of the electric current of the drive coil 703 of flowing through to produce the electromagnetic force of magnet 702 and lens barrel 1401.As shown in Figure 30, control part 2000 is adjusted sense of current and voltage, so that lens barrel 1401 is moved to the feature camera site.After lens barrel 1401 moved, second magnetisable material 2812 that is fixed to outer lens barrel 1401 attracted magnet 702, thereby lens barrel is fixed to the feature camera site.Simultaneously, second retainer 2814 touches the upper end of outer lens barrel 601, so that the position stability of lens barrel 1401.

Control part 2000 is driven into capturing element the subject image of taking on capturing element by offset lens group 607.Capturing element becomes the signal of telecommunication with the image transitions of taking, to send the control part 2000 in the main frame to by flexible PCV.

Second embodiment

Figure 31 and 32 is views that the structure of image picking-up apparatus according to a second embodiment of the present invention is shown.That is, Figure 31 and 32 is views that the installment state of the variable focus lens package 651, zoom drive portion 653 and the zoom actuator that change magnification ratio is shown.Referring to Figure 31, in the predetermined cross-sectional figure of the image picking-up apparatus that A-A along the line obtains, image picking-up apparatus 600 comprises: zoom drive portion 653, capturing element 602, capturing element matrix 603, antiultraviolet filter 604, fixed lens group 605, variable focus lens package 651, offset lens group 607 and variable focus lens package 651 with outer lens barrel 601; The focus drive division 608 of offset lens group 607 is installed; And the guidance axis 609 of the transfer of these two drive divisions of guiding.

To image picking-up apparatus 600 among the different predetermined cross-sectional figure that obtains along another line B-B in the cross section that obtain with A-A along the line be described referring to Figure 32.Zoom drive coil 711 and focus drive coil 703 are connected to the outside of zoom drive portion 653 and focus drive division 651 respectively, and zoom drive coil 711 and focus drive coil 703 are installed to be with magnet 702 and yoke assembly 701 electromagnetism and cooperate.Two drive

divisions

608 and 653 each all have the structure that is similar to Fig. 7.And two drive coils 703 and 711 utilize the principle work of explanation in Fig. 8 and 9.That is, according to the sense of current and the size that are applied to two drive coils 703 and 711, two drive

divisions

608 and 653 that connect these two drive coils respectively move along guidance axis 609.

Therefore, being installed in displacement set of lenses 651 in the zoom drive portion 653 and the offset lens group 607 that is installed on the focus drive division 608 can move along the optical axis of image picking-up apparatus 600.

Will be referring to the operation of Figure 33-35 explanation according to the optical system of above-mentioned structure.

As shown in FIG., be applied to two drive coils 703 being connected to drive division and 711 electric current by control respectively, be installed in the displacement set of lenses 651 in the second zoom drive portion 653 and be installed in offset lens group 607 in the first zoom drive portion 608 can be on left and right directions independent moving.

As shown in Figure 33, if displacement set of lenses 651 and offset lens group 607 are in initial position respectively, the object 1103 that then is positioned on the predetermined object plane 1101 forms image 1104 on the plane of delineation of being determined separately by optical system 300 1102, wherein said optical system 300 comprises object plane 1101, fixed lens group 605,606, displacement set of lenses 651, offset lens group 607 and the anti-tampering filter of mole line (moir é).Therefore, capturing element 602 is positioned on the plane of delineation 1102.

Figure 34 illustrates such example, wherein adjust offset lens group 607 with displacement set of lenses 651 is moved to the precalculated position and with the framing of object 1103 on the plane of delineation 1102, thereby amplify the image of object 1103.The image 1104 bigger than the image among Figure 33 is formed on the plane of delineation 1102.

Figure 35 illustrates such example, wherein adjust offset lens group 607 with displacement set of lenses 651 is moved to the precalculated position and with the framing of object 1103 on the plane of delineation 1102, thereby make the image of littler object 1103.The image 1104 littler than initial pictures is formed on the plane of delineation 1102.

In the structure of the second embodiment of the present invention shown in Figure 31, if do not drive the zoom actuator, then Figure 36-39 comprises the brake apparatus of the position that is used for fixing focus drive division 608.As with brake application in of the present invention first or the embodiment of second embodiment, in the sectional view in a predetermined direction (C-C along the line obtains), imaging apparatus 602 comprises: focus drive division, capturing element 602, capturing element matrix 603, antiultraviolet filter 604, fixed

lens group

605 and 606, compensation and variable

focus lens package

607 and 651 that outer lens barrel 601 is installed; Braking drive division 621; The rotary middle spindle of braking drive division 621; Spring force is added to the spring 625 of braking drive division 621; And the restraining coil of driving braking drive division 621.

To comprise the detailed structure of the brake apparatus of said elements referring to Figure 37 explanation.Braking drive division 621 has the structure that can rotate rotary middle spindle 622, and the spring 623 of contact braking drive division 621 is installed in the top of braking drive division 621 in one direction.Spring one termination contacts a part 2002 of the inside of epi mirror tube 601, and the other end touches the projection on the part that is formed on braking drive division 621.Spring provides the power of rotation brake drive division 621 in the clockwise direction for drive division 621.Magnet 627 inserts in the plane of drive divisions 621 and near the restraining coil 623 of the position of inserting magnet 627, and twines several times.Restraining coil 623 is connected to the precalculated position in the outer lens barrel 601.

Will be referring to Figure 38 and 39 explanation operation of braking means.Do not flow in the initial condition of restraining coil 623 at electric current, braking drive division 621 becomes the state of the braking contact site 629 that touches on the precalculated position that is installed in focus drive division 608.In this state, because the frictional force between braking drive division 621 and the braking contact site 629, focus drive division 608 can not move.

As shown in Figure 39, if scheduled current flows to restraining coil 623, then brake drive division 621 and attracted to restraining coil 623 by restraining coil 623 magnetic force that produces and the cooperation of inserting the electromagnetic force of braking the magnet 627 in the drive division 621.Therefore, braking drive division 621 falls away from braking contact site 629, and the first zoom drive portion 608 can move freely.

This embodiment of the present invention illustrates that brake apparatus is installed in the first zoom drive portion 608, but brake apparatus also can be installed in second drive division 653.

The 3rd embodiment

Figure 40 is the view of structure that the image picking-up apparatus of a third embodiment in accordance with the invention is shown.Image picking-up apparatus with reference to Figure 40 comprises: offset lens group 4200; Be used to regulate the focus actuator 4300 of the focus of offset lens group 4200; Focus drive division 4250, described focus drive division 4250 is installed between offset lens group and the focus actuator 4300, is used to be provided with the initial position of offset lens group 4200; Be used to support the compensation drive division 4400 of focus actuator 4300; Be used to support the zoom drive portion 4700 of variable focus lens package 4600 and displacement set of lenses 4600; Zoom actuator 4500, described zoom actuator 4500 are used for driving compensation drive division 4400 so that along the first motion track motion compensation set of lenses 4200 with drive zoom drive portion 4700 so that along second set of lenses, 4200 moving displacement set of lenses 4600; Capturing element 4800, described capturing element 4800 are used to take the image through the object of offset lens group 4200 and displacement set of lenses 4600; And control part 2000, described control part 2000 is used to control focus actuator 4300, zoom actuator 4500 and capturing element 4800.

In this embodiment of the present invention, can utilize the driving element of different shape to realize zoom actuator 4500.Therefore, schematically represent the zoom actuator, and do not have the concrete shape of display driver element, but concentrate on its function.

And image picking-up apparatus 4000 further comprises and is used to make compensation drive division 4400 and zoom drive portion 4700 to be returned to the return mechanism of its initial condition.

Such image picking-up apparatus 4000 comprises that further fixed lens group 4100 is fixed on fixed lens barrel 4110 on the optical axis identical with offset lens group 4200 and displacement set of lenses 4600 with being used for fixed lens group 4100.

Figure 41 is the view that the structure of the offset lens group 4200 shown in Figure 40, focus drive division 4250 and compensation drive division 4400 is shown, and Figure 42 is the sectional view of Figure 41.As shown in Figure 41 and 42, focus drive division 4250 comprises: portion combines and forms first externally threaded first lens barrel 4210 on its excircle with the offset lens group within it; And its outside combination with focus actuator and second lens barrel 4220 of formation first internal thread on the circumference within it, described first internal thread combines with first external screw thread, 4212 screw threads.

Well 4214 is formed on first lens barrel 4210, to insert and throw.By instrument being inserted well and making its rotation, regulate the height of first lens barrel 4210, with the best initial position of fixed compensation set of lenses 4200.

Focus actuator 4300 comprises: drive coil 4310, described drive coil 4310 are wrapped on the side of the focus drive division 4250 or the first zoom drive portion so that be fixed, and receive the electric current from control part; And magnet 4320, described magnet 4320 is fixed to a side of the focus drive division 4250 or the first zoom drive portion 4400, and wherein the polarity of magnet is separated, thus magnetic flux is through the flat of drive coil 4310.

Focus actuator 4300 further comprises the returning spring 4350 that makes focus drive division 4250 be returned to initial position.

Be used to make the yoke 4330 of the magnetic flux circulation of magnet 4320 further to be connected to a side of magnet 4320.

When electric current is supplied to the drive coil 4310 of focus actuator 4300, produce magnetic flux.Because the first embodiment of the present invention describes the process owing to polarity moving focal point drive division 4250 on optical axis direction of magnetic flux and magnet 4320 in detail, so will omit detailed description to this process.

Figure 43 is the view that another embodiment of the focus actuator 4300 shown in Figure 40 is shown, and Figure 44-46 illustrates the structure of the focus actuator 4300 shown in Figure 43.Brake shown in Figure 43-46 has the structure that is similar to the focus actuator shown in Figure 40.Therefore, will use same reference numerals for same configuration.

That is, as shown in Figure 43, focus actuator 4300 comprises: offset lens group 4200, described offset lens group 4200 comprise makes a plurality of lens of subject image through specific amplification; Focus drive division, described focus drive division are used for arranging offset lens group 4200 on optical axis direction; Drive division 4360, described drive division 4360 is used to receive the power supply that provides from the outside, to be created in the power that moves on the direction that is orthogonal to optical axis; Cam part, described cam part is used to receive the power of drive division 4360, with metastatic focus drive division 4250 on optical axis direction; And be used for the control part 3000 of controlling and driving portion 4360.

As shown in Figure 42, focus drive division 4250 comprises: first lens barrel 4210, and described first lens barrel 4210 portion within it combines with the offset lens group, and forms first external screw thread on its excircle; And second lens barrel 4220, described second lens barrel 4220 forms the internal thread 4222 that combines with external screw thread 4212 screw threads.Well 4214 is formed on first lens barrel 4210, to insert and throw.

Simultaneously, as shown in Figure 44, drive division 4360 comprises: yoke 4361a; Coil 4363a, described coil 4363a is wrapped on the yoke 4361a, and receives the power supply from control part 2000, is used to magnetize yoke 4361a; And rotor 4365a, described rotor 4365a is rotatably installed on the yoke 4361a, thereby in the face of yoke 4361a, and comprise the magnet that rotates according to the sense of current that is applied to coil 4363a.

Make the principle of rotor 4365a rotation be similar to stepping motor, and by controlling the phase place that imposes on the voltage of coil 4363a from control part, rotor 4365a can be by the direction control of rotor.Rotor 4365a is installed in the pivot of focus drive division 4250.

As shown in Figure 45, drive division 4360 according to another embodiment of the present invention comprises: motor 4361b, and described motor 4361b is by receiving the power supply rotation from control part 2000; Spur gear 4362b, described spur gear 4362b combines with the rotating shaft 4364b of motor 4361b, to be rotated; And rotor 4364b, described rotor 4364b forms and spur gear 4362b meshed gears tooth 4363b.

And as shown in Figure 46, drive division 4360 comprises: motor 4361c, and described motor 4361c is by receiving the power supply rotation from control part 2000; Driving screw 4363c, described driving screw 4363c combines with the rotating shaft 4362c of motor 4361c; And screw rod retainer 4364c, described screw rod retainer 4364c combines with driving screw 4363c, to move on the direction that is orthogonal to optical axis by being rotated in of driving screw 4363c.

Described focus actuator 4300 comprises and is used to the returning spring 4350 that makes focus drive division 4250 be returned to initial position.

Simultaneously, cam part comprises: inclined-plane 4380, described inclined-plane 4380 is formed on the drive division 4360, is used to make focus drive division 4250 to rise on optical axis direction.Focus drive division 4250 further comprises the projection 4390 that touches inclined-plane 4380.

Explanation had the focus drive division 4250 of above-mentioned structure and the operation of focus actuator 4300.

If the power supply of control part 2000 is not applied to drive division 4360, then focus drive division 4250 is fixed to initial position by returning spring 4350.

If the user utilizes the keyboard that is installed on the communication equipment to promote shooting push button, then control part 2000 is taken the subject image of process offset lens group 4200.The capturing element (not shown) is transformed into the signal of telecommunication with the image of taking, by flexible PCV image is sent to control part 2000.

If that takes is not fogging clear, receive that then the power supply that the control part 2000 of image will be used to focus is applied to drive coil 701.

If power supply supplies to the drive division 4360 shown in Figure 44, then electric current is applied to coil 4363a from control part 2000, with the magnetization yoke, thereby makes the rotor 4365a rotation that comprises magnet.Therefore, the inclined-plane that is formed on the rotor 4365a rises the projection 4390 of focus drive division 4250.

For the drive division shown in Figure 45 4360, when with electric current when control part 200 is supplied with motor 4361b, the gear teeth 4362b that combines with the rotating shaft 4365b of motor 4361b is by gear teeth 4363b rotation, with rotor 4364b.Therefore, the inclined-plane 4380 that is formed on the rotor 4363b rises the projection 4390 of focus drive division 4250.

For the drive division shown in Figure 46 4360, if give motor 4361c from control part 200 power supplies, the driving screw 4363c that then combines with the rotating shaft 4362 of motor 4361c rotation is with mobile screw retainer 4364c.Screw rod retainer 4364c moves along guidance axis 4365c, thereby inclined-plane 4380 rises the projection of focus drive division 4250.

Therefore, owing to offset lens group 4200 rises on optical axis direction or descends, so the image of taking by capturing element becomes more clear.

Simultaneously, Figure 47 is another embodiment of the focus actuator of Figure 40.Focus actuator 4250 can comprise piezoelectric element 4300, and described piezoelectric element 4300 is connected to offset lens group 4200 and compensation drive division 4400, and receives the electric current from control part 2000, to drive focus drive division 4250 on optical axis direction.

Figure 48 is the view that the zoom actuator 4500 among Figure 40 is shown.Its schematically illustrated function, and do not have the shape of essence, because various types of driving element all can be used as zoom actuator 4500.

Figure 49 is the view that the motion track of zoom actuator shown in Figure 30 and displacement is shown.Figure 50-55 is shown specifically the view of the structure of zoom actuator 4500, the first zoom drive portion 4400 and second drive actuator 4700 shown in Figure 48.

Zoom actuator 4500 shown in Figure 48 comprises: the actuating source; Compensation driver part 4570, described compensation driver part 4570 are used for driving compensation drive division 4400, so that the edge is first motion track, the 4202 motion compensation set of lenses 4200 of zoom route of transition; And zoom drive parts 4580, described zoom drive parts 4580 are used to drive zoom actuation part 4700, so that the edge is second motion track, the 4602 moving displacement set of lenses 4600 of zoom route of transition.

The actuating source comprises: rotary driving part 4510, described rotary driving part 4510 are used for producing revolving force by the control of control part 2000; And rotor 4500, described rotor 4500 is by receiving the power rotation of rotary driving part 4510.

Compensation driver part 4570 comprises first inclined-plane 4572, and described first inclined-plane rises the first zoom drive portion 4400 by the rotation of rotor 4550, is first motion track, the 4202 motion compensation set of lenses 4200 of zoom route of transition with the edge.

In addition, zoom drive portion 4580 comprises second inclined-plane 4582, and described second inclined-plane rises the second zoom drive portion 4700 by the rotation of rotor 4550, and the edge is second motion track, the 4602 moving displacement set of lenses 4600 of zoom route of transition.

Figure 50 is the top view that is shown specifically the actuating source of the zoom actuator shown in Figure 48, and Figure 51-the 55th, and the perspective view of the structure of the activated drive portion shown in Figure 50 is shown.

In Figure 50, the zoom actuator comprises: fixed lens group 4100; Fixed lens barrel 4110, fixed lens group 4100 is fixed to described fixed lens barrel; Offset lens group 4200, wherein the zoom magnification ratio changes according to the gap adjustment between the fixed lens group 4100; Compensation actuator is used for along being first motion track, the 4202 motion compensation set of lenses 4200 of zoom route of transition; Displacement set of lenses 4600, wherein the zoom magnification ratio changes according to the gap adjustment between the offset lens group 4200; The zoom actuator is used for along being second motion track, the 4602 moving displacement set of lenses 4600 of zoom route of transition; Capturing element 4800, described capturing element 4800 is fixed to fixed lens barrel 4110, is used to take the subject image through fixed lens group 4100, offset lens group 4200 and displacement set of lenses 4600; And control part, described control part is used for control compensation actuator, zoom actuator and capturing element 4800.

That is, Figure 51 is the perspective view of structure that the rotor of the zoom actuator shown in Figure 50 is shown, and Figure 52 is the perspective view of structure that the stator of the zoom actuator among Figure 50 is shown, and Figure 53 is the exploded view of Figure 52.

Here, by the stator shown in two unit architecture Figure 52 shown in stacked Figure 53, and Figure 54 is the perspective view that first guiding tube shown in Figure 50 and second guiding tube are shown.

As shown in Figure 51-55, the zoom actuator comprises: stator 5520, and described stator 5520 is used to receive the power supply from control part, and has the coil that is used to produce magnetic field, described magnetic field has first and second polarity, and described first and second polarity are divided into a plurality of parts, and is replaced; Two toroidal magnets 5121,5221, described two toroidal magnets 5121,5221 are assembled by one, and wherein its polarity is divided into first polarity and second polarity, so that be exposed to the magnetic field that coil 5515,5215 produces; Build-up member 5410, described build-up member 5410 are used to assemble two toroidal magnets so that have the phase place of 90 degree; The top 5120 of rotor 5410, described top 5120 are used for receiving revolving force when electric current is applied to first coil 5115; The bottom 5220 of rotor 5410, described bottom 5220 are used for receiving revolving force when electric current is applied to second coil 5215; Rotor build-up member 5410, described rotor build-up member 5410 are used for one and assemble this two rotors, so that have differing of 90 degree each other; Be used to drive a pair of the first rotor and first stator of compensation drive division; First lens barrel 5310 that is used for fixing offset lens group 5200; And first cam part, be used for revolving force with the first rotor 5210 and be transformed into the centripetal force on the optical axis direction and send it to first lens barrel.

As shown in Figure 53, constitute stator by stacked two parts, wherein every layer all comprises: magnetisable material 5112, and described magnetisable material 5112 has a plurality of tops core body 5111, and described a plurality of tops core body 5111 corresponds respectively to the first identical polarity of opening in 5121,5220 minutes from magnet; Magnetisable material 5114, described magnetisable material 5114 has a plurality of lower core 5113, and described a plurality of lower core 5113 are inserted top core body 5111 respectively; And coil 5115, described coil 5115 is wrapped on the excircle in conjunction with material of top core body 5111 and lower core 5113.

The first rotor 5120 comprises first rotating cylinder that forms the first track groove 5411 consistent with first motion track.

Cam part comprises: first camshaft 5320, and described first camshaft 5320 is fixed to first lens barrel 5310, and inserts the first track groove 5411; And first guiding tube 5520, thereby described first guiding tube 5520 is formed for guiding first camshaft 5320 only moves it on optical axis direction first slot 5521.

A pair of second rotor and second stator have with the first rotor and first stator to identical shape, and with identical principle work.Second rotor comprises: trinocular tube 5330, and described trinocular tube 5330 is used for fixing variable focus lens package 4600; And second cam part, described second cam part is used for revolving force with second rotor 5220 and is transformed into the centripetal force on the optical axis direction and sends it to trinocular tube 5330.

Second rotor 5220 comprises second rotating cylinder 5530 that forms the second track groove consistent with second motion track.

Second cam part comprises: second camshaft 5340, and described second camshaft 5340 is fixed to the 4th lens barrel 5320, and inserts the second track groove; And second guiding tube 5530, thereby described second guiding tube 5530 is formed for guiding second camshaft 5340 only moves it on optical axis direction second slot.

The keyboard that forms the communication equipment of above-mentioned image picking-up apparatus comprises the button that is used to carry out the button of zoom and is used for the shot object image.

Simultaneously, by driving the first and second zoom actuators so that along first motion track, 4202 motion compensation set of lenses 4200 with by along second motion track, 4602 moving displacement set of lenses 4600, control part is finished zoom and is changed.

When the user promoted to be installed in shooting push button in the keyboard of communication equipment, control part drove capturing element 4800, to take the image through the object of fixed lens group 4100, offset lens group 4200 and displacement set of lenses 4600.Capturing element 4800 is transformed into the signal of telecommunication with the image of taking, to send the control part in the main frame to by flexible PCV.

Simultaneously, if the user wishes to change the magnification ratio in the subject image of capturing element 4800 photographs, then the user promotes to be installed in the button that being used on the keyboard carry out zoom function.

Therefore, control part imposes on first stator and second stator of compensation actuator and zoom actuator with power supply, to produce magnetic field.

When magnetic field produces in first stator, magnetic force with first polarity and second polarity is formed on respectively on top core body 5111 and the lower core 5113 simultaneously, and the magnetic force of first and second polarity is given magnet 5121 according to the revolving force that the electric current that is applied to stator is created on clockwise direction or the counter clockwise direction.Stator is divided into two parts, i.e. the top 5110 of cooperating with the top magnet 5121 of rotor and the bottom 5210 of cooperating with the lower magnet 5221 of rotor.Electric current with pulse shape utilizes above-mentioned cooperation to be applied to be wrapped in two

coils

5115,5215 on the stator upper and lower, thereby these two coils have 90 phase place, and stator is clockwise or rotation counterclockwise.

When 5410 rotations of first rotating cylinder, first camshaft 5320 that an end inserts the first track groove 5411 is received in the power that moves on the optical axis direction.First camshaft 5320 is guided first slot 5521 of first guiding tube 5520, thereby it only moves on optical axis direction.

When first camshaft 5320 moved, first lens barrel 5310 and offset lens group 4200 moved on optical axis direction.Therefore, offset lens group 4200 moves along first motion track 4202 that amplifies route of transition as zoom.

Simultaneously, second stator and second rotor have and first stator and the first rotor identical construction and effect, so that 5420 rotations of second rotating cylinder.

When 5420 rotations of second rotating cylinder, second camshaft 5340 that an end inserts the second track groove is received in the power that moves on the optical axis direction.Second camshaft 5340 is guided second slot 5531 of second guiding tube 5530, and only drives on optical axis direction.

Simultaneously, when second camshaft 5340 moved, trinocular tube 5330 and offset lens group 4200 moved on optical axis direction.Therefore, offset lens group 4200 moves along second motion track 4602 that amplifies route of transition as zoom.

As mentioned above, the zoom that is undertaken by fixed lens group 4100, offset lens group 4200 and variable focus lens package 4600 amplifies change.

Figure 56 is the view that second embodiment of the zoom actuator shown in Figure 50 is shown, and Figure 57 is the perspective view that the cam part of the compensation actuator shown in Figure 56 is shown.Figure 56 illustrates another embodiment of first cam part of the image picking-up apparatus shown in Figure 50, and Figure 57 is the perspective view of the cam canister shown in Figure 56.

First cam part shown in the figure comprises: cam canister 5610, and described cam canister 5610 is formed on the cross section of first rotating cylinder 5410, and forms the cam surface 5611 that moves first lens drum along first motion track; And elastomeric element, described elastomeric element produces the predetermined elastic force that is used for first lens barrel 5310 is pushed to cam canister 5610.

Cam surface 5611 forms two row on symmetric position, and two first lens barrels 5310 are mounted, and described lens barrel touches cam surface 5611 respectively.Therefore, cam canister 5610 can form 360 degree rotations.Elastomeric element comprises compression spring 5613.

Become bigger by the radius that is formed on cam canister 5610, the first lens barrels 5310 on first lens barrel 5310.Therefore, the radius that is fixed on the offset lens group 4200 in first lens barrel 5310 becomes bigger.Like this, can take high quality graphic.

Figure 58 is the view that second embodiment of the zoom actuator shown in Figure 50 is shown, and Figure 59 is the view that the 3rd embodiment of the zoom actuator shown in Figure 50 is shown.

That is, as shown in Figure 58, another embodiment of zoom actuator comprises: by receiving the power supply motor rotating 5730 from control part; Combine spur gear 5734 to be rotated with the central shaft 5731 of motor 5730; Reach the rotor 5750 that forms the gear teeth that combines with spur gear 5734.

As shown in Figure 59, another embodiment of zoom actuator comprises: motor 5840, and described motor 5840 is by receiving the power supply rotation from control part; Driving screw 5844, described driving screw 5844 combines with the central shaft 5852 of motor 5840; And screw rod retainer 5846, described screw rod retainer 5846 combines with driving screw 5844, so that be orthogonal on the direction of optical axis mobile by being rotated in of driving screw 5844.Screw rod retainer 5846 comprises the guidance axis 5848 of the motion that is used for lead screw retainer 5846.

Compensation driver part 5870 comprises the 3rd inclined-plane 6874, described the 3rd inclined-plane 6874 is formed on the screw rod retainer 5846, and when being orthogonal on the direction of optical axis, screw rod retainer 5846 compensation drive division 4400 is risen when mobile on optical axis direction, so that offset lens group 4200 is along moving for first motion track 4202 of zoom route of transition.

And, the second zoom drive portion 4700 comprises the 4th inclined-plane 5884, described the 4th inclined-plane 5884 is formed on the screw rod retainer 5846, and when being orthogonal on the direction of optical axis, screw rod retainer 5,846 the second zoom drive portion 4700 is risen when mobile on optical axis direction, so that the second zoom drive portion 4700 is along moving for second motion track 4602 of zoom route of transition.

Below, the operation of image picking-up apparatus that explanation is had a third embodiment in accordance with the invention of above-mentioned structure.

At first, give focus actuator 4300 if do not apply power supply from control part, then focus actuator 4300 is fixed to initial position by returning spring 4350.

If the user promotes to be installed in the shooting push button on the keyboard on the communication equipment, then control part drives capturing element 4800, to take the subject image through fixed lens group 4100, offset lens group 4200 and displacement set of lenses 4600.Capturing element 4800 is transformed into the signal of telecommunication with the image of taking, to send it in the main frame control part 2000 by flexible PCV.

If that takes is not fogging clear, the power supply that then is used to focus imposes on focus actuator 4300.

For the focus actuator shown in Figure 41, when electric current imposes on drive coil 4310,, offset lens group 4200 is driven in moving winding 4310 in the actuating force that rises on the optical axis direction or descend produce by repulsion at the magnetic flux of magnet 4320.Because described actuating force, the position of offset lens group 4200 precisely changes, thereby becomes more clear at the image of capturing element 4800 photographs.

Simultaneously, if the user promotes to be installed in the zoom shot button on the keyboard on the communication equipment, then control part drives zoom actuator 4500, to carry out the zoom mode of the position that changes offset lens group 4200 and displacement set of lenses 4600.

For the zoom actuator 4500 shown in Figure 50-59, by driving the first and second zoom actuators, so that along first motion track, 4202 motion compensation set of lenses 4200 with by along second motion track, 4602 moving displacement set of lenses 4600, the complete zoom of control part changes.

For the zoom actuator 4500 shown in Figure 58, if electric current is supplied with motor 5730 from control part, spur gear 5734 rotations that then combine with the central shaft 5732 of motor 5730 are to pass through the commutating tooth gear teeth 5732 rotors 5750.Therefore, be formed on first inclined-plane 5772 on the rotor 5750 along first motion track, 4202 motion compensation drive divisions 4400.

For the zoom actuator 4500 shown in Figure 59, if electric current is supplied with motor 5840 from control part, driving screw 5844 rotations that then combine with the rotating shaft 5842 of motor 5840 are with mobile screw retainer 5846.Therefore, screw rod retainer 5846 moves along guidance axis 5848, thereby the 3rd inclined-plane 5874 moves the first zoom drive portion 4400 along first motion track 4202, and the 4th inclined-plane 5884 moves the second zoom drive portion 4700 along second motion track 4602.

Like this, carry out zoom mode, described zoom mode is amplified the subject image of taking through fixed lens group 4100, offset lens group 4200 and variable focus lens package 4600.

After carrying out zoom function, capturing element 4800 is transformed into the signal of telecommunication with the image of taking, and sends it in the main frame control part by flexible PCV, and control part is in zoom function rear drive focus actuator, so that image is more clear.

Figure 60 is the view that the state of the compensation drive division 2611, compensation suspension member 2613 and the compensation actuator 2615 that are supported by displacement set of lenses to be installed 4600 is shown.

In Figure 60, depend on distance between the object with respect to the image degree of diffusion of hand amount of jitter.That is, use with respect to the driving amount based on the distance between the object of hand amount of jitter and calculate distance between the object, and use driving amount with respect to the driving amount adjustment compensation driver 2615 of the compensation actuator of hand Jitter Calculation.Since the operation of Figure 60 with the compensation drive division 2615 shown in Figure 26, compensate suspension member 2611, compensation actuator 2615, displacement transducer 2617 are identical with servo controller 2619, so will omit the description to it.

In order to change the zoom magnification ratio that constitutes by offset lens group 4200 and displacement set of lenses 4600, control part imposes on zoom actuator 4500 by user's operation with power supply, with along the first motion track motion compensation set of lenses, and drive the second zoom drive portion 4700, with along the second motion track moving displacement set of lenses 4600, change thereby carry out zoom.

Simultaneously, during the image of shot object, the hand shake of holding the user of capture apparatus is transmitted to displacement set of lenses 4700, and the displacement set of lenses 4600 that is kept hold modes by compensation suspension member 2611 moves being orthogonal on the directions X of optical axis.

At this moment, be installed in the wherein motion of the second zoom drive portion 4700 of fixed displacement set of lenses 4600 of displacement transducer 2617 sensings in the second zoom drive portion 4700, and send described motion to servo controller 2619.

When servo controller 2619 thinks that displacement set of lenses 4600 is on directions X when mobile, its drives compensation actuator 2613 so that be orthogonal to motion compensation driver 2615 on the direction that displacement set of lenses 4600 moves, thereby makes displacement set of lenses 4600 reply initial conditions.

Like this, although the hand shake is transmitted to displacement set of lenses 4600, by the motion of cancellation compensation actuator 2613, displacement set of lenses 4600 always is in the reference position.Therefore, become always clear through displacement set of lenses 4600 images with the object on capturing element 4800 that is taken.

The 4th embodiment

Figure 61 is the view of structure that the image picking-up apparatus of a fourth embodiment in accordance with the invention is shown, and described image picking-up apparatus comprises: focus lens group 6110; Focus actuator 6120 is used to regulate the focusing of focus lens group 6110; Fixed part 6130 is used to support focus actuator 6120; Offset lens group 6140; The 3rd zoom drive portion 6150 is used to support offset lens group 6140; Displacement set of lenses 6160; The second zoom drive portion 6170 is used for bracing displacement set of lenses 6160; Zoom actuator 6180 is used to drive the 3rd zoom drive portion 6150 so that along the first motion track motion compensation set of lenses 6140, and drives the second zoom drive portion 6170 so that along the second motion track moving displacement set of lenses 6160; Capturing element 6190 is used to take the subject image through offset lens group 6140 and displacement set of lenses 6160; And control part, be used to control focus actuator 6120, zoom actuator 6180 and capturing element 6190.

Capturing element further comprises the fixed lens barrel 6210 that is used for support fixation set of lenses 6200.

And image picking-up apparatus comprises the focus drive division 6120 between focus lens group 6110 and focus actuator 6130.Focus drive division 6120 and focus actuator 6130 have and focus actuator 4300 identical construction shown in Figure 41-47, and zoom actuator 6180 has and the zoom actuator identical construction shown in Figure 59.Therefore, will omit detailed description thereof.

Yet the 3rd zoom drive portion 6150 comprises: the 5th lens barrel, described the 5th lens barrel portion within it combine with offset lens group 6140, and form the 3rd external screw thread on its excircle; And the 6th lens barrel, described the 6th lens barrel forms the 3rd internal thread that combines with the 3rd external screw thread screw thread.

Imaging apparatus according to the 4th embodiment that constructs as mentioned above has and third embodiment of the present invention identical operations.Therefore, will omit detailed description thereof.

If the user promotes to be installed in the shooting push button on the keyboard on the communication equipment, then control part drives capturing element 6190, to take the subject image through fixed lens group 6200, focus lens group 6110, offset lens group 6140 and displacement set of lenses 6160.Capturing element 6190 is transformed into the signal of telecommunication with the image of taking, to send it in the main frame control part (not shown) by flexible PCV.

Figure 62 illustrates between the offset lens group 607 that is installed in the image picking-up apparatus shown in Fig. 6 and the focus drive division 608 or is installed in the offset lens group 4200 of the image picking-up apparatus shown in Figure 40 and the view of the shutter device 5200 between the first zoom drive portion 4300.Figure 63 is the plane graph that the structure of shutter device 6200 is shown, and Figure 64 and 65 is views that the mode of operation of the shutter device 6200 shown in Figure 63 is shown.

The shutter device 6200 that is installed in the present embodiment on the image picking-up apparatus shown in Figure 40 comprises: matrix 6201, described matrix 6201 is fixed to the first zoom drive portion 4400, and has through hole, light by described through hole to offset lens group 4200; Shutter portion, described shutter portion is by matrix 6201 axial support; Piezoelectric Ceramic portion 6202 is used for by receiving power drives shutter portion; And control part, be used for power supply and give Piezoelectric Ceramic portion 6202.

Piezoelectric Ceramic portion 6202 has the shape in conjunction with two kinds of materials, and these two kinds of materials have the cubical expansivity different by the supply of power supply.Piezoelectric Ceramic portion 6202 produces has the material bending of higher expansion rate to the displacement that has than the material of low thermal expansion.Shutter portion uses such attribute drive.

In addition, shutter portion comprises the shutter plate 6210 that forms rotating hole 6204, and described shutter plate 6210 rotatably combines with hinge axis 6203 on being formed on matrix 6201, and opens and closes light through hole 6205 by rotatablely moving.

Here, the every pair of shutter plate 6210 is installed on the relative position based on light through hole 6205, opens and closes light through hole 6205 simultaneously in both sides with the operation by Piezoelectric Ceramic portion 6202.

Each shutter plate 6210 all axial support in matrix 6201, and the cam hole 6212 that combines with the driving shaft 6211 of Piezoelectric Ceramic portion 6202 of formation.When driving shaft 6211 carried out rectilinear motion, each shutter plate 6210 was all carried out and is rotatablely moved, to open and close light through hole 6205.

At this moment, control part is as aperture, described aperture is used for closing the narrow limit of black out through hole 6205 by a small amount of power supply being imposed on Piezoelectric Ceramic portion 6202, thereby in narrow limit, drive shutter portion, and control part is as shutter, described shutter is used for closing black out through hole 6205 for Piezoelectric Ceramic portion 6202 by supplying a large amount of power supplys, thereby drives shutter portion on a large scale.

Below, the operation of the shutter device with above-mentioned structure will be described referring to Figure 64 and 65.

For the shot object image, shutter device 6200 is opened light through hole 6205 fully, thereby light can pass through offset lens group 4200.Therefore, can be in capturing element brighter ground shot object image.

At this moment, power supply is not applied to Piezoelectric Ceramic portion 6202 from control part, and a clamshell doors plate 6210 keeps the open mode of light through hole 6205.

Simultaneously, when the shot object image, as shown in Figure 65, shutter device 6200 stops the light of offset lens group 4200 immediately.

Described process is as described below, and at first, power supply is applied to Piezoelectric Ceramic portion 6202 from control part, 6202 bendings of Piezoelectric Ceramic portion, thereby mobile driving shaft 6211, and driving shaft 6211 promotes the cam hole 6212 of a pair of shutter plate 6210.Therefore, a pair of shutter plate 6210 is assembled in the both sides of light through hole 6205, thereby closes black out through hole 6205.Like this, owing to two shutter plates 6210 are assembled from the both sides of light through hole simultaneously, so can stop the light of light through hole 6205 fast.

The image quality in images that suspends depends on the speed of shutter device 6200.The shutter device 6200 of present embodiment is because its simple structure makes the translational speed maximum of the plate that opens the door.Like this, can take the high-quality image that suspends.

Simultaneously, in order to open light through hole 6205 after the shooting of finishing image, the power supply of Piezoelectric Ceramic portion 6202 is supplied with in the control part blocking-up.Therefore, Piezoelectric Ceramic portion 6202 is returned to initial condition, and driving shaft 6211 promotes the cam hole 6212 of a pair of shutter plate 6210 in the opposite direction.Like this, a pair of shutter plate 6210 is opened light through hole 6205.

Simultaneously, according to the type of camera head, can at first close some part of black out through hole 6205, rather than once close black out through hole 6205,, then close overall optical through hole 6205 again to reduce the light quantity as shown in Figure 65.In this case, control part is at first as aperture, and described aperture closes black out through hole 6205 for Piezoelectric Ceramic portion 6202 by a small amount of power supply of supply in narrow limit, thereby drives shutter portion in narrow limit.Then, control part is as shutter, and described shutter closes overall optical through hole 6205 for Piezoelectric Ceramic portion 6202 by supplying a large amount of power supplys, thereby drives shutter portion on a large scale.

Although illustrate and describe the present invention, it will be apparent to one skilled in the art that and in not departing from the spirit and scope of the present invention that limit by appended claims, can make various changes and modification with reference to concrete preferred embodiment.

Claims

1. image picking-up apparatus comprises:

The offset lens group;

The focusing drive division that is used for fixing the offset lens group;

Focus actuator, described focus actuator will focus on drive division and transfer to optical axis, be used for the focus of control compensation set of lenses;

Be used to support the fixed part of focus actuator;

Capturing element, described capturing element are used to take the image through the object of offset lens group; And

Be used to control the control part of focus actuator and capturing element.

2. image picking-up apparatus comprises:

The offset lens group;

Focus actuator, described focus actuator is used for the focusing of control compensation set of lenses;

Be used to support the first zoom drive portion of focus actuator;

The displacement set of lenses;

The zoom actuator, described zoom actuator is used to drive the first zoom drive portion so that the edge is the first motion track motion compensation set of lenses of zoom route of transition, and drives the second zoom actuation part so that along being the second motion track moving displacement set of lenses of zoom route of transition;

Capturing element, described capturing element are used to take the image through the object of offset lens group and displacement set of lenses; And

3. image picking-up apparatus according to claim 1 and 2, described focus drive division comprises:

First lens barrel, described first lens barrel portion within it combine with the offset lens group, and form first external screw thread on its excircle;

Second lens barrel, described second lens barrel combines with focus actuator in its outside, and forms first internal thread that combines with the first external screw thread screw thread on the circumference within it; And

Well, described well are installed on first lens barrel, to insert and throw.

4. image picking-up apparatus according to claim 1 and 2, described focus actuator comprises:

Drive coil, described drive coil are wrapped on the side of the focus drive division or the first zoom drive portion so that be fixed, and receive the electric current from control part; And

Magnet, described magnet is fixed to the opposite side of the focus drive division or the first zoom drive portion, and wherein the polarity of magnet is separated, thus magnetic flux is through the flat of drive coil.

5. image picking-up apparatus according to claim 1 and 2, described focus actuator further comprises the returning spring that is used for the focus drive division is returned to initial position.

6. image picking-up apparatus according to claim 4 further comprises yoke, and described yoke is used to improve the efficient in the magnetic field that magnet produces between magnet and focus drive division.

7. image picking-up apparatus according to claim 4 further comprises yoke, and described yoke is used to improve the efficient in the magnetic field that magnet produces between the magnet and the first zoom drive portion.

8. image picking-up apparatus according to claim 1 and 2, described focus actuator comprises:

Cam part, described cam part is used to receive the power of drive division, to switch in the power of metastatic focus drive division on the optical axis direction.

9. image picking-up apparatus according to claim 8, described drive division comprises:

Motor, the power supply rotation of described motor by supplying with by control part;

Spur gear, described spur gear combines so that be rotated with the central shaft of motor; And

Rotor, described rotor forms the gear teeth that combines with spur gear, and by receiving the power supply rotation of supplying with by control part.

10. image picking-up apparatus according to claim 8, described drive division comprises:

The driving screw that combines with the rotating shaft of motor; And

The screw rod retainer, described screw rod retainer combines with driving screw, so that move along the direction that is orthogonal to optical axis by the rotation of driving screw.

Be formed on the drive division, be used to inclined-plane that the focus drive division is risen on optical axis direction 11. image picking-up apparatus according to claim 8, described cam part comprise, wherein the focus drive division forms the projection that touches the inclined-plane.

12. image picking-up apparatus according to claim 1 and 2, described focus actuator comprises piezoelectric element, described piezoelectric element be installed between offset lens group and the fixed part or the offset lens group and the first zoom drive portion between, and receive electric current, so that on optical axis direction, drive the offset lens group from control part.

13. image picking-up apparatus according to claim 1, described focus actuator comprises suspension member, described suspension member is supported between fixed part and the focus drive division, thereby the focus drive division is controlled to move along optical axis direction, to be limited in the driving of the focus drive division on the direction except that driving direction, to guide the focus drive division thus and accurately driven along optical axis direction.

14. image picking-up apparatus according to claim 13, described focus actuator comprises:

Be fixed to the magnet of fixed part or focus drive division;

Drive coil, described drive coil is fixed to side fixed part or focus drive division, that do not have fixed magnets, so that be exposed to the magnetic field of magnet, and when applying the electric current of control part, be wound, so that produce the power that is used on optical axis direction, driving the focus drive division by the magnetic flux that receives magnet; And

Magnetisable material, described magnetisable material are fixed to a side of fixed drive coil, and by the attraction moving focal point drive division to magnet magnetic force, so that the focus drive division is fixed to the precalculated position.

15. image picking-up apparatus according to claim 13, described suspension member comprises leaf spring or deformed spring.

16. image picking-up apparatus according to claim 15, described leaf spring comprises:

Strain portion, described strain portion is out of shape on optical axis direction by making the narrowed width between fixed part and the focus drive division;

A plurality of first holes; And

First and second lug bosses, described first and second lug bosses insert in a plurality of first holes, so that suspension member is fixed to the first zoom drive portion and focus drive division.

17. further comprising, image picking-up apparatus according to claim 1, described focus actuator be used to guide focus drive division driven guiding device on optical axis direction.

18. image picking-up apparatus according to claim 17, described guiding device comprises:

Slide protrusion, described slide protrusion is being formed on the optical axis direction on the side of focus drive division; And

Sliding tray, described sliding tray are formed on the side of the slide protrusion that does not form the focus drive division, are used to guide slide protrusion and move on optical axis direction.

19. image picking-up apparatus according to claim 1, described guiding device comprise be formed on the focus drive division on the guidance axis that combines slidably of guide hole.

Be formed on three or more guidance parts on the fixed part 20. image picking-up apparatus according to claim 19, described guiding device further comprise along optical axis direction, described guidance part is used for the outer peripheral face of guiding focus drive division on optical axis direction.

21. image picking-up apparatus according to claim 19, described control part comprises:

The control signal generating unit, described control signal generating unit is used to produce low frequency Modulation and Amplitude Modulation control signal, described low frequency Modulation and Amplitude Modulation control signal prevents the frictional force in electric current being supplied to the initial predetermined driving time of drive coil, and described control signal generating unit is used for producing high frequency Modulation and Amplitude Modulation control signal behind initial predetermined driving time; And

The pulse width modulating signal efferent, described pulse width modulating signal efferent is used to export the low frequency Modulation and Amplitude Modulation control signal that is produced by the control signal generating unit, and the pulse width modulating signal efferent has low frequency portion and radio-frequency head, described low frequency portion and radio-frequency head are according to high frequency Modulation and Amplitude Modulation control signal opening/closing, to drive the drive coil of focus actuator.

22. image picking-up apparatus according to claim 21, wherein said low frequency Modulation and Amplitude Modulation control signal has identical duty ratio with high frequency Modulation and Amplitude Modulation control signal.

23. image picking-up apparatus according to claim 22, the pulse width modulating signal efferent comprises:

Transistor, described transistor have the emitter that is connected to ground, be used to receive the base stage of the low frequency Modulation and Amplitude Modulation control signal that produced by the control signal generating unit and high frequency Modulation and Amplitude Modulation control signal and be connected to the collector electrode of driving element; And

Be connected the resistance between transistor and the base stage; And

Be connected the diode between transistorized collector electrode and the power supply.

24. image picking-up apparatus according to claim 1 and 2, described focus driver comprises:

The compensation drive division, described compensation drive division is installed between offset lens group and the focus drive division, to drive the offset lens group;

The compensation suspension member, described compensation suspension member is connected between compensation drive division and the focus drive division, so that the offset lens group is fixed to the focus drive division, is movable in the direction of the optical axis that is orthogonal to the offset lens group thereby become;

Compensation actuator, described compensation actuator are supported between compensation drive division and the focus drive division, so that be orthogonal to driving compensation drive division on the direction of optical axis;

Displacement transducer, described displacement transducer are installed on the side of focus drive division, are used for sensing because the focus drive division that the shake of user's hand causes is being orthogonal to moving on the direction of optical axis; And

Servo controller, described servo controller are according to the information-driven compensation actuator of displacement transducer, so that the focus drive division is returned to initial condition.

25. image picking-up apparatus according to claim 24, described compensation suspension member comprises deformed spring or leaf spring.

26. image picking-up apparatus according to claim 24, described compensation actuator comprise one in voice coil motor, piezoelectric element and the ultrasound electric machine.

27. image picking-up apparatus according to claim 4, described compensation actuator further comprise the initial position fixed part that is used for by predetermined braking force the focus drive division being fixed to initial position.

28. image picking-up apparatus according to claim 27, described initial position fixed part comprises first magnetisable material, described first magnetisable material is fixed to a described side that is fixed with magnet, so that be not exposed in the scope of the magnetic line of force of a described side that does not have fixed magnets, and the attraction magnet is to be fixed to initial position with the focus drive division.

29. image picking-up apparatus according to claim 4, described focus actuator further comprises specific amplification position fixing part, described specific amplification position fixing part is used for the focus drive division is moved to ad-hoc location, thereby throws the subject image of offset lens group with specific magnification ratio.

30. image picking-up apparatus according to claim 29, described specific amplification position comprises second magnetisable material, described second magnetisable material is fixed to a side that does not have fixed magnets, not to be exposed in the magnetic line of force scope, and attraction magnet, so that the focus drive division is fixed to initial position, thereby the focus drive division is fixed to specific amplification position.

31. image picking-up apparatus according to claim 2, the second zoom drive portion comprises:

Trinocular tube, described trinocular tube portion within it combine with the displacement set of lenses, and form second external screw thread on its excircle; And

The 4th lens barrel, described the 4th lens barrel combines with focus actuator in its outside, and forms second internal thread that combines with the first external screw thread screw thread on the circumference within it.

32. image picking-up apparatus according to claim 2, described zoom actuator comprises:

The actuating source;

The first zoom drive parts, the described first zoom drive parts are used to drive the first zoom drive portion, so that the edge is the first motion track motion compensation set of lenses of zoom route of transition;

The second zoom drive parts, the described second zoom drive parts are used to receive the power from the source of actuating, and drive the second zoom drive portion, so that the edge is the second motion track moving displacement set of lenses of zoom route of transition; And

Return mechanism, described return mechanism are used for the first zoom drive portion and the second zoom drive portion are returned to initial condition.

33. image picking-up apparatus according to claim 32, described actuating source comprises:

Rotary driving part, described rotary driving part are used for producing revolving force by the control of control part; And

Rotor, described rotor are used to receive the power of rotary driving part so that be rotated.

34. image picking-up apparatus according to claim 33, the described first zoom drive parts comprise first inclined-plane, described first inclined-plane rises the first zoom drive portion by the rotation of rotor, so that the edge is the first motion track motion compensation set of lenses of zoom route of transition.

35. image picking-up apparatus according to claim 33, the described second zoom drive parts comprise second inclined-plane, described second inclined-plane rises the second zoom drive portion by the rotation of rotor, so that the edge is the second motion track moving displacement set of lenses of zoom route of transition.

36. according to claim 32 or 33 described image picking-up apparatus, described actuating source comprises:

Motor, described motor are used to receive power supply from control part so that be rotated;

Rotor, described rotor forms the gear teeth that combines with spur gear.

37. according to claim 32 or 33 described image picking-up apparatus, described actuating source comprises:

Driving screw, described driving screw combines with the rotating shaft of motor; And

The screw rod retainer, described screw rod retainer combines with driving screw, moves so that be orthogonal to by being rotated in of driving screw on the direction of optical axis.

38. according to the described image picking-up apparatus of claim 37, described screw rod retainer comprises the guidance axis that moves that is used for the lead screw retainer.

39. according to the described image picking-up apparatus of claim 37, the described first zoom drive parts comprise the 3rd inclined-plane, described the 3rd inclined-plane is formed on the screw rod retainer and the first zoom drive portion is risen when the screw rod retainer is being orthogonal on the direction of optical axis when mobile on optical axis direction, so that along being the first motion track motion compensation set of lenses of zoom route of transition.

40. according to the described image picking-up apparatus of claim 37, the described second zoom drive parts comprise the 4th inclined-plane, described the 4th inclined-plane is formed on the screw rod retainer and the second zoom drive portion is risen when the screw rod retainer is being orthogonal on the direction of optical axis when mobile on optical axis direction, so that make second variable focus lens package along moving for second motion track of zoom route of transition.

41. image picking-up apparatus according to claim 2, described zoom actuator comprises:

Stator, described stator are used to receive the power supply from control part, and have the coil that is used to produce magnetic field, and described magnetic field has first and second polarity, and described first and second polarity are divided into a plurality of parts and are replaced;

Two toroidal magnets, described two toroidal magnets are assembled by one, and wherein its polarity is divided into first polarity and second polarity, so that be exposed to the magnetic field that coil produces;

Build-up member, described build-up member are used to assemble two toroidal magnets so that have the phase place of 90 degree;

The top of rotor, the top of described rotor are used for receiving revolving force when electric current is applied to first coil;

The bottom of rotor, the bottom of described rotor are used for receiving revolving force when electric current is applied to second coil;

Rotor build-up member, described rotor build-up member are used for one and assemble described two rotors so that have differing of 90 degree each other;

Be used to drive a pair of the first rotor and first stator of compensation drive division;

First lens barrel that is used for fixing the offset lens group; And

First cam part, described first cam part are used for revolving force with the first rotor and are transformed into the centripetal force on the optical axis direction and send it to first lens barrel.

42. according to the described image picking-up apparatus of claim 41, described stator comprises:

By the magnetisable material that stacked two parts form, described magnetisable material has a plurality of tops core body, and described a plurality of tops core body corresponds respectively to the first identical polarity of separating from first and second magnets;

Magnetisable material with a plurality of lower core, described a plurality of lower core correspond respectively to the second identical polarity of separating from first magnet and insert the top core body respectively; And

First drive coil, described first drive coil is wrapped on the excircle in conjunction with material of top core body and lower core.

43. according to the described image picking-up apparatus of claim 42, described the first rotor comprises first rotating cylinder that forms the first track groove consistent with first motion track, and first cam part comprises:

First camshaft, described first camshaft is fixed to first lens barrel, and inserts the first track groove; And

First guiding tube, described first guiding tube forms first slot, it only moves on optical axis direction thereby described first slot is used to guide first camshaft.

44. according to the described image picking-up apparatus of claim 42, described second rotor comprises:

The trinocular tube that is used for fixing variable focus lens package; And

Second cam part, described second cam part are used for revolving force with second rotor and are transformed into the centripetal force on the optical axis direction and send it to trinocular tube,

And second rotor further comprises:

Second rotating cylinder, described second rotating cylinder is fixed by second magnet, and forms the second track groove consistent with second motion track that is the zoom route of transition.

45. according to the described image picking-up apparatus of claim 42, described first cam part comprises:

First magnet;

Cam canister, described cam canister is formed on the cross section of first rotating cylinder, and is formed for moving along first motion track cam surface of first lens drum;

And first cam part comprises:

Cam canister, described cam canister is formed on the cross section of the 3rd rotating cylinder, and is formed for moving along first motion track cam surface of first lens drum; And

Elastomeric element, described elastomeric element produces the predetermined elastic force that is used for first lens barrel is shifted onto cam canister.

46. according to the described image picking-up apparatus of claim 45, wherein said cam surface forms two row on symmetric position, and two points of trinocular tube touch described cam surface respectively.

47. according to the described image picking-up apparatus of claim 41, the described second zoom actuator comprises:

Second stator, described second stator is used to receive the power supply from control part, and has second coil, and described second coil is used to produce the magnetic field with first and second polarity, and described first and second polarity are divided into a plurality of parts and are replaced respectively;

Second rotor, described second rotor has second magnet, and wherein first and second polarity are separated so that be exposed to from each magnetic field that separates that second coil produces, and carry out spinning movement when electric current is imposed on second coil;

Second lens barrel that is used for fixing the offset lens group; And

Second cam part, described second cam part are used for revolving force with the first rotor and convert the centripetal force on the optical axis direction to and send it to second lens barrel.

48. according to the described image picking-up apparatus of claim 47, described second stator comprises:

49. according to the described image picking-up apparatus of claim 47, described second rotor comprises:

Second magnet; And

Second rotating cylinder, described second rotating cylinder forms the second track groove consistent with second motion track,

Described second cam part comprises:

Second camshaft, described second camshaft is fixed to the 4th lens barrel, and inserts in the second track groove; And

Second guiding tube, described second guiding tube forms second slot, it only moves on optical axis direction thereby described second slot is used to guide second camshaft.

50. an image picking-up apparatus comprises:

Focus lens group;

Be used to regulate the focus actuator of the focusing of focus lens group;

Be used to support the fixed part of focus actuator;

The offset lens group;

Be used to support the 3rd zoom drive portion of offset lens group;

The displacement set of lenses;

Zoom actuator, described zoom actuator are used to drive the 3rd zoom drive portion so that along the first motion track motion compensation set of lenses, and are used to drive the second zoom drive portion so that along the second motion track moving displacement set of lenses;

Capturing element, described capturing element are used to take the subject image through offset lens group and displacement set of lenses; And

51. image picking-up apparatus according to claim 5, further comprise the focus drive division between focus lens group and focus actuator, wherein the focus drive division comprises: first lens barrel, described first lens barrel portion within it combines with the offset lens group, and forms first external screw thread on its excircle; And second lens barrel, described second lens barrel combines with focus actuator in its outside, and forms first internal thread that combines with the first external screw thread screw thread on the circumference within it.

52. according to the described image picking-up apparatus of claim 52, described focus actuator comprises:

Magnet, described magnet are fixed to a side of the focus drive division or the first zoom drive portion, and wherein the polarity of magnet is separated, thereby magnetic flux is through the flat of drive coil.

53. want 52 described image picking-up apparatus according to right, described focus actuator further comprises the returning spring that is used for the focus drive division is returned to initial position.

54., further comprise being positioned at the yoke that is used to make the magnetic flux circulation on magnet one side according to the described image picking-up apparatus of claim 52.

55. according to the described image picking-up apparatus of claim 50, described focus actuator comprises piezoelectric element, described piezoelectric element is installed between the offset lens group and the first zoom drive portion, and receives the electric current from control part, to drive the first zoom drive portion on optical axis direction.

56. according to the described image picking-up apparatus of claim 50, the described second zoom drive portion comprises:

The 4th lens barrel, described the 4th lens barrel portion within it combine with the displacement set of lenses, and form second external screw thread on its excircle; And

The 4th lens barrel, described the 4th lens barrel form second internal thread that combines with the second external screw thread screw thread on the circumference within it.

57. according to the described image picking-up apparatus of claim 50, described the 3rd zoom drive portion comprises:

The 5th lens barrel, described the 5th lens barrel portion within it combine with the offset lens group, and form the 3rd external screw thread on its excircle; And

The 6th lens barrel, described the 6th lens barrel forms the 3rd internal thread that combines with the 3rd external screw thread screw thread.

58. according to the described image picking-up apparatus of claim 50, described zoom actuator comprises:

The actuating source;

The first zoom drive parts, the described first zoom drive parts are used to receive the power from the source of actuating, and drive the first zoom drive portion so that along being the first motion track motion compensation set of lenses of zoom route of transition;

The second zoom drive parts, the described second zoom drive parts are used to receive the power from the source of actuating, and drive the second zoom drive portion so that along being the second motion track moving displacement set of lenses of zoom route of transition.

59., comprise first return mechanism that is used for the first zoom drive portion and the second zoom drive portion are returned to initial condition according to the described image picking-up apparatus of claim 50.

60. according to the described image picking-up apparatus of claim 58, described actuating source comprises:

61. according to the described image picking-up apparatus of claim 60, the described first zoom drive parts comprise first inclined-plane, described first inclined-plane rises the first zoom drive portion by the rotation of rotor, so that the edge is the first motion track motion compensation set of lenses of zoom route of transition, and the described second zoom drive parts comprise second inclined-plane, described second inclined-plane rises the second zoom drive portion by the rotation of rotor, so that the edge is the second motion track moving displacement set of lenses of zoom route of transition.

62. according to the described image picking-up apparatus of claim 60, described actuating source comprises:

Yoke;

Coil, described coil is wrapped on the yoke, and receives the power supply from control part, is used to magnetize described yoke; And

Rotor, described rotor is rotatably installed on the yoke, thereby faces yoke, and is made of magnet, and described magnet is according to the sense of current rotation that is applied to coil.

63. according to the described image picking-up apparatus of claim 60, described actuating source comprises:

Rotor, described rotor forms the spur gear that combines with spur gear.

64. according to the described image picking-up apparatus of claim 60, described actuating source comprises:

The driving screw that combines with the rotating shaft of motor; And

65. according to the described image picking-up apparatus of claim 64, the described first zoom drive parts comprise the 3rd inclined-plane, described the 3rd inclined-plane is formed on the screw rod retainer, and, the screw rod retainer the first zoom drive portion is risen when mobile on optical axis direction when being orthogonal on the direction of optical axis, so that the edge is the first motion track motion compensation set of lenses of zoom route of transition, and the described second zoom drive parts comprise the 4th inclined-plane, described the 4th inclined-plane is formed on the screw rod retainer, and when being orthogonal on the direction of optical axis, the screw rod retainer the second zoom drive portion is risen when mobile on optical axis direction, so that along being the second motion track moving displacement set of lenses of zoom route of transition.

66. image picking-up apparatus according to claim 4, described focus actuator further comprises a plurality of iron plates, and described a plurality of iron plates are connected to the precalculated position between magnet and the yoke, thereby will be applied to the current steering of drive coil respectively to end direction.

67. image picking-up apparatus according to claim 1 comprises being fixed to the brake apparatus that the focus drive division is used to control the driving of focus drive division.

68. according to the described image picking-up apparatus of claim 67, described brake apparatus comprises:

Be installed in the rotating shaft on the focus drive division;

Be rotatably installed in the braking drive division on the rotating shaft;

Be used on a direction, promoting the spring of braking drive division;

Be installed in the permanent magnet on the precalculated position of braking drive division; And

Drive coil, the contiguous braking of described drive coil drive division is installed on the precalculated position of the first zoom drive portion.

69. according to the described image picking-up apparatus of claim 68, described brake apparatus is characterised in that:

When electric current was not applied to drive coil, the braking drive division kept the contact condition with the focus drive division, thereby by the frictional force fixed-focus drive division between braking drive division and the focus drive division; And

When electric current is applied to drive coil, the braking drive division by the magnetic force that produces by drive coil be installed in the cooperating of permanent magnet of braking on the drive division and attracted to the drive coil direction, thereby the braking drive division is cut off with contacting of focus drive division, moves freely the focus drive division thus.

70. according to claim 2 or 50 described image picking-up apparatus, further comprise brake apparatus, described brake apparatus is fixed in the second zoom drive portion or second drive division one, so that control the driving of the second zoom drive portion or the 3rd zoom drive portion.

71. according to the described image picking-up apparatus of claim 70, described brake apparatus comprises:

Be installed in the rotating shaft in the second zoom drive portion or the 3rd zoom drive portion;

Be rotatably installed in the braking drive division on the rotating shaft;

Be used on a direction, promoting the spring of braking drive division;

Drive coil, the contiguous braking of described drive coil drive division is installed on the precalculated position of the second zoom drive portion or the 3rd zoom drive portion.

72. according to the described image picking-up apparatus of claim 71, described brake apparatus is characterised in that:

When electric current is not applied to drive coil, the braking drive division keeps the contact condition with the second zoom drive portion or the 3rd zoom drive portion, thereby fixes the second zoom drive portion or the 3rd zoom drive portion by the frictional force between braking drive division and the second zoom drive portion or the 3rd zoom drive portion; And

When electric current is applied to drive coil, the braking drive division by the magnetic force that produces by drive coil be installed in the cooperating of permanent magnet of braking on the drive division and attracted to the drive coil direction, thereby the braking drive division is cut off with the second zoom drive portion or the 3rd contacting of zoom drive portion, moves freely the second zoom drive portion or the 3rd zoom drive portion thus.

73. image picking-up apparatus according to claim 1 and 2 further comprises shutter device, described shutter device is installed between offset lens group and the focus drive division or peace is changeed between the offset lens group and the first zoom drive portion, thus the control light quantity.

74. according to the described image picking-up apparatus of claim 73, described shutter device comprises:

Matrix, described matrix are fixed to the first zoom drive portion, and have the light through hole, and described smooth through hole makes light by described offset lens group;

Shutter portion by the matrix axial support; And

Be used for by receiving the Piezoelectric Ceramic portion of power drives shutter portion.

75. according to the described image picking-up apparatus of claim 73, described shutter device comprises:

Form the shutter plate of rotating hole, described rotating hole rotatably combines with hinge axis on being formed on matrix, and by the opening and closing light through hole that rotatablely moves.

76. according to the described image picking-up apparatus of claim 75, described shutter plate is characterised in that based on the light through hole and is installed on the relative position, opens and closes the light through hole simultaneously in both sides with the operation by Piezoelectric Ceramic portion.

77. according to the described image picking-up apparatus of claim 76, described each shutter plate is characterised in that by axial support in matrix, and the cam hole that formation combines with the driving shaft of Piezoelectric Ceramic portion, thereby when driving shaft carries out rectilinear motion, each shutter plate is all carried out and is rotatablely moved, to open and close the light through hole.

78. according to each the described image picking-up apparatus among the claim 74-77, described control part is characterised in that as aperture, described aperture is used for closing the narrow limit of black out through hole by a small amount of power supply being imposed on Piezoelectric Ceramic portion, so that in narrow limit, drive shutter portion, and described control part is as shutter, described shutter is used for closing the black out through hole by a large amount of power supplys being imposed on Piezoelectric Ceramic portion, thereby drives shutter portion on a large scale.